Display device and electronic apparatus

Abstract

The invention provides a display device and electronic equipment. The display device comprises a plurality of spliced display modules, each display module comprises a display panel, and the display panel comprises a display main body and a frame surrounding the display main body; the optical fiber assembly is arranged on the display panel and comprises a first end face and a second end face which are opposite, the first end face faces the display panel, and the projection of the first end face on the display panel is located in the range of the display body. The projection of the second end surface on the display panel covers part of the display main body and the frame connected with other display modules; the first optical element is arranged on the second end face, and the first optical element is used for forming a 3D image; and the second optical element is arranged on the display main body, and the second optical element is used for forming a 3D image. According to the invention, the naked eye 3D effect of seamless display can be realized, and the cost of the display device can be reduced.

Description

Technical Field

[0001] The present application relates to the field of 3D display technology, and in particular to a display device and an electronic device. Background Art

[0002] In advertising display, usually small-sized display panels are spliced ​​to form a large-sized display panel, combined with other optical devices to achieve 3D image display. There is a black border at the splicing of multiple display panels, which will cause the actual image displayed by the display device to have a sense of segmentation, affecting the viewing comfort of the viewer. Therefore, it is necessary to eliminate the impact of the border.

[0003] In the related art, in order to reduce costs, a prism and a grating glass substrate are provided at the incident end of the display. Through the deflection effect of the prism, the light of the frame can be deflected to outside the visible area of ​​the human eye.

[0004] However, in the related art, when the viewer is in the side viewing area, the frame can be viewed, and therefore, the seamless display of the naked-eye 3D effect cannot be achieved. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a display device and an electronic device, which can achieve a seamless display of naked-eye 3D effects while reducing the cost of the display device.

[0006] The present application provides a display device, including a plurality of spliced ​​display modules. The number of display modules can be two, four, six, etc. For an image to be displayed, each display module can display a partial image of the image to be displayed, and a plurality of display modules can display the complete image to be displayed.

[0007] Each display module includes: a display panel, an optical fiber assembly, a first optical element, and a second optical element. The display panel displays a main body and a frame surrounding the display main body. The display main body is used to display a 2D image, and the frame does not display an image. The optical fiber assembly is arranged on the display panel, and the optical fiber assembly includes a first end face and a second end face opposite to each other, the first end face faces the display panel, and the projection of the first end face on the display panel is located within the range of the display main body, the first optical element is arranged on the second end face, and the first optical element is used to form a 3D image.

[0008] The 2D image displayed on the display panel covered by the projection of the first end face can be output to the first optical element through the optical fiber assembly, and a partial 3D image is formed through the first optical element. The second optical element is arranged on the display body, and the second optical element is used to form a 3D image. Therefore, the display panel can also form a partial 3D image through the second optical element from the image displayed in the part of the display body not covered by the optical fiber assembly. The partial 3D image formed by the first optical element and the partial 3D image output by the second optical element constitute the 3D image displayed by each display module. Since the projection of the first end face of the optical fiber assembly on the display panel is located within the range of the display body, and the projection of the second end face on the display panel covers part of the display body and the frame connected to other display modules, the 3D image output by the optical fiber assembly can cover the frame, thereby eliminating the influence of the frame, and then achieving a seamless display of naked-eye 3D effect.

[0009] Since the projection of the first end face of the optical fiber assembly on the display panel is within the range of the display body, and the projection of the second end face on the display panel covers part of the display body and the frame connected to other display modules, the projection of the optical fiber assembly on the display panel is smaller than the display panel, that is, the present application can reduce the size of the optical fiber assembly. Since the optical fiber assembly has a certain height in the third direction, the present application can reduce the weight of the optical fiber assembly and reduce the cost of the optical fiber assembly, thereby reducing the cost of the display device while achieving a seamless naked-eye 3D effect.

[0010] In some possible implementations, the projection of the second end face on the display panel covers the projection of the first end face on the display panel. The 2D image output by the display body covered by the first end face in the display panel can be output to the second end face through the first end face. It can be understood that each display unit in the display body can output light, and the light output by each display unit can form a 2D image. When the display panel displays a 2D image, it is equivalent to the display panel emitting light to the optical fiber assembly, and the light is output from the first end face to the second end face, and the light is emitted to the first optical element through the second end face. If the projection of the second end face on the display panel fails to cover the projection of the first end face on the display panel, it means that the light output by the second end face fails to cover the projection of the first end face on the display panel, which will cause part of the 2D image output by the display body to be unable to be displayed, thereby causing the 3D image output by the display device to be discontinuous. In the embodiment of the present application, the projection of the second end face on the display panel covers the projection of the first end face on the display panel, so that the 2D image displayed by the projection of the first end face on the display panel can be displayed, thereby making the 3D image output by the display device more continuous.

[0011] In one possible implementation, the side of the optical fiber assembly facing the second optical element is in contact with the second optical element. Since the second optical element is disposed on the display body, the optical fiber assembly is also disposed on the display body. When the side of the optical fiber assembly facing the second optical element is in contact with the second optical element, the display body can be divided into a first sub-display body and a second sub-display body that are connected. The optical fiber assembly is disposed on the first sub-display body, and the second optical element is disposed on the second sub-display body. The optical fiber assembly can output part of the 2D image output by the first sub-display body to the first optical element and display it in 3D, and the second optical element can display part of the 2D image output by the second sub-display body in 3D, thereby being able to fully display the 2D image displayed in the display panel.

[0012] In another possible implementation manner, a gap is provided between a side of the optical fiber assembly facing the second optical element and the second optical element.

[0013] In some possible implementations, the second end face has a first edge and a second edge opposite to each other, and the projection of the first edge on the display panel coincides with the edge of the frame away from the display body. Since the frames of two adjacent display modules are connected, for example, by glue, when the projection of the first edge on the display panel coincides with the edge of the frame away from the display body, the first edges of the second end faces of two adjacent display modules are connected, so that there is no gap between the 3D images output by the two connected display modules, that is, a seamless display of naked-eye 3D effect is better achieved.

[0014] Moreover, the projection of the second edge on the display panel coincides with the projection of the edge of the first end surface facing the second optical element on the display panel. Since the side of the optical fiber assembly facing the second optical element is in contact with the second optical element, that is, the projection of the edge of the first end surface facing the second optical element on the display panel is in contact with the second optical element, the projection of the second edge on the display panel is in contact with the second optical element. As a result, the 3D image output by the second optical element does not overlap with the 3D image output through the optical fiber assembly and the first optical element, so that no ghosting occurs; moreover, there is no gap between the 3D image output by the second optical element and the 3D image output through the optical fiber assembly and the first optical element, so that the 3D image output by the display device can be more continuous.

[0015] In some possible implementations, the display module further includes a backlight module, which is disposed on a side of the display panel away from the optical fiber assembly, and the backlight module is used to emit light to the display panel, and the emitted light at least covers the projection of the first end face on the display panel. When the display panel is a liquid crystal display, the projection of the second end face on the display panel covers the projection of the first end face on the display panel, so that the image entering from the first end face can be amplified by the optical fiber assembly and output from the second end face, which results in a reduction in the intensity of the light output from the second end face, that is, the intensity is lower than the intensity of the light output from the second optical element. The light emitted by the backlight module can cover the projection of the first end face on the display panel, thereby being able to compensate for the intensity of the light with reduced intensity, thereby making the brightness of the 3D image output by the display module as consistent as possible.

[0016] In some possible implementations, the backlight module includes a plurality of lamp groups, the light emitted by the first lamp group among the plurality of lamp groups covers the projection of the first end surface on the display panel, and the light emitted by the second lamp group among the plurality of lamp groups covers at least a portion of the display body, so that the intensity of the light emitted by the first lamp group is higher than the intensity of the light emitted by the second lamp group. In this way, more intensity compensation can be provided for the light output from the optical fiber assembly, and less intensity compensation can be provided for the light output from a portion of the display body, so that the intensity of the light emitted on the entire display panel is more uniform.

[0017] In some possible implementations, the projection of the first end surface on the display panel covers the projection of the first lamp group on the display panel. Since the intensity of the light at the joint between the first optical element and the second optical element will gradually change, when the projection of the first end surface on the display panel covers the projection of the first lamp group on the display panel, it means that the size of the first lamp group along the second direction is less than or equal to the size of the first end surface along the second direction. In this way, the light emitted by the first lamp group will irradiate a part of the first end surface, and the light emitted by the second lamp group will irradiate another part of the first end surface, thereby enabling the light emitted by the backlight module to better adapt to the gradually changing light intensity.

[0018] In some possible implementations, the relationship between the width dimension b of the first end surface and the width dimension a of the frame satisfies: b / a≤10. In this way, the width dimension b of the first end surface is small, thereby reducing the volume of the optical fiber assembly, thereby reducing the cost of the optical fiber assembly.

[0019] In some possible implementations, the height of the optical fiber assembly along the third direction is less than or equal to 20 mm, and the third direction is the direction from the first end face to the second end face. Thus, the height of the optical fiber assembly along the third direction can be made smaller, thereby reducing the volume of the optical fiber assembly and reducing the cost of the optical fiber assembly.

[0020] In some possible implementations, the optical fiber assembly includes a plurality of optical fibers, and the relationship between the diameter d2 of the end face of each optical fiber away from the display panel, the diameter d1 of the end face of the optical fiber toward the display panel, the width dimension a of the frame, and the width dimension b of the first end face satisfies:

[0021] When the projection of the first edge of the second end surface on the display panel coincides with the edge of the frame away from the display body, the width dimension of the second end surface may be the sum of the width dimension a of the frame and the width dimension b of the first end surface. Therefore, the ratio between the width dimension of the second end surface and the width dimension of the first end surface is Thus, each optical fiber amplifies the optical fiber output from the display body by the same proportion, thereby making the 3D image output by the display device more uniform.

[0022] Regarding the structure of the first optical element, in a possible implementation, the first optical element includes a first cylindrical lens array. The first cylindrical lens array is arranged on an optical fiber assembly, and the optical fiber assembly is arranged on the first sub-display body, which can convert a 2D image output by the second sub-display body into a 3D image for display, and can also reduce the loss of image brightness.

[0023] In another possible implementation, the first optical element includes a parallax barrier grating, which has the characteristic of low cost, thereby reducing the cost of the display device.

[0024] In another possible implementation, the first optical element includes a first cylindrical lens array and a parallax barrier grating. The first cylindrical lens array and the parallax barrier grating are disposed on the display body and arranged along the light path direction.

[0025] Regarding the structure of the second optical element, in a possible implementation, the second optical element includes a second cylindrical lens array. The second cylindrical lens array is provided in the second sub-display body of the display panel, and can convert the 2D image output by the second sub-display body into a 3D image for display, and can also reduce the loss of image brightness.

[0026] In another possible implementation, the second optical element includes a parallax barrier grating. The parallax barrier grating has the characteristic of low cost, thereby reducing the cost of the display device.

[0027] In another possible implementation, the second optical element includes a second cylindrical lens array and a parallax barrier grating. The second cylindrical lens array and the parallax barrier grating are disposed on the display body and arranged along the light path direction.

[0028] In some possible implementations, the relationship between the aperture p1 of the first cylindrical lens array, the aperture p2 of the second cylindrical lens array, the width dimension a of the frame, and the width dimension b of the first end surface satisfies: Since the optical fiber component amplifies part of the light output from the display body, and the magnification is Therefore, when the ratio between the aperture p1 of the first cylindrical lens array and the aperture p2 of the second cylindrical lens array is also When the display device outputs a 3D image, the display device can make the 3D image output more uniform.

[0029] In some possible implementations, the optical fiber assembly includes a plurality of optical fibers; the first end face covers at least three projections within any display unit range within the projection on the display panel, and the optical fiber projection is the projection of the end face of the optical fiber facing the display panel on the display panel. Any display unit range includes three color channels of R, G, and B, and at least three optical fibers covered within any display unit range can transmit light of the three color channels respectively.

[0030] The present application also provides an electronic device, comprising a housing and any one of the above display devices, wherein the display device is fixed in the housing. The electronic device can achieve all the effects of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1a A schematic diagram of the structure of two display panels spliced ​​into a large-size display panel;

[0033] Figure 1b A schematic diagram of the structure of four display panels spliced ​​into a large-size display panel;

[0034] Figure 2 It is a structural schematic diagram of a display device in a related technology;

[0035] Figure 3 is a structural schematic diagram of a display device in another related technology;

[0036] Figure 4 This is a schematic diagram of the structure of a display device in one embodiment of the present application;

[0037] Figure 5a for Figure 4 A top view of

[0038] Figure 5b for Figure 4 Another top view of

[0039] Figure 6 for Figure 4 The schematic diagram of the structure of the module is shown in the figure;

[0040] Figure 7 for Figure 4 A schematic diagram of the structure of two display panels spliced ​​together;

[0041] Figure 8 for Figure 4 A schematic diagram of the covering relationship between the display unit in the middle display panel and the projection of the optical fiber on the display body;

[0042] Fig. 9 It is a schematic diagram of the structure of a display module in another embodiment of the present application.

[0043] Icons: 1-display device; 100-display module; 11-display panel; 111-display body; 112-frame; 113-first frame; 114-second frame; 115-third frame; 116-display unit; 117-first sub-display body; 118-second sub-display body; 20-optical fiber assembly; 21-first end face; 22-second end face; 221-first edge; 222-second edge; 23-optical fiber; 30-first optical element; 31-first cylindrical lens array; 311-cylindrical lens; 32-first parallax barrier grating; 40-second optical element; 41-second cylindrical lens array; 411-second cylindrical lens; 42-second parallax barrier grating; 50-backlight module; 51-first lamp group; 52-second lamp group; 61-grating film glass substrate; 62-prism; 63-splicing optical system. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] The term "and / or" herein is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B may be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one (item)" refers to one or more, and "plurality" refers to two or more. "At least one of the following (items)" or similar expressions refers to any combination of these items, including any combination of single (items) or plural (items). For example, at least one (item) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or multiple.

[0046] The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0047] "Connected", "connected" and similar words are used to express the intercommunication or interaction between different components, which may include direct connection or indirect connection through other components. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, inclusion of a series of steps or units. Methods, systems, products or devices are 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. "Up", "down", "left", "right" and the like are only used relative to the orientation of the components in the drawings. These directional terms are relative concepts. They are used for description and clarification relative to the description, which may change accordingly according to the change of the orientation of the components in the drawings.

[0048] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0049] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0050] To facilitate understanding of the display device provided in the embodiment of the present application, the following terms are explained:

[0051] Naked-eye 3D display: Display technology that allows users to see 3D effects with naked eyes without wearing 3D glasses.

[0052] Ultra-multi-viewpoint naked-eye 3D display: By restoring different angles of real objects in space and forming dense viewpoints, naked-eye 3D display technology with motion parallax is achieved.

[0053] Parallax: refers to the change and difference in the position of an object in the field of vision when observing the same object from two different positions.

[0054] Ultra-multi-viewpoint naked-eye 3D display technology can restore the luminous information of real objects in space through ultra-dense directional light beams, and can realistically restore the texture and angle information of objects. Compared with ordinary 2D displays, it can attract viewers' attention more. Therefore, ultra-multi-viewpoint naked-eye 3D technology has important value in the advertising field.

[0055] The larger the screen of the display device, the stronger the shock displayed to the viewer, and the stereoscopic effect brought by the large-size naked-eye 3D display can also attract more attention from the viewer. Therefore, in advertisements, exhibitions or displays, the application of large-size naked-eye 3D display is becoming more and more widespread. The display device generally may include a display panel and an optical element. The display panel can output a 2D image to the optical element, and the optical element can convert the 2D image into a 3D image for display. Due to process cost limitations, it is impossible to mass-produce display panels with large size and high resolution. For example, when the size of the display panel is 110 inches and the clarity is above 16K, it will not be possible to mass-produce. In order to obtain a large-size display panel, it can be formed by splicing small-size display panels. For example, such as Figure 1a As shown, a large-size display panel can be obtained by splicing two display panels 11. Figure 1b As shown, a large-size display panel can be obtained by splicing four display panels 11.

[0056] like Figure 1aAs shown, the display panel 11 generally includes a display body 111 and a frame 112 surrounding the display body 111, and the frame 112 is generally black. The display body 111 can be used to display images, but the frame 112 cannot display images. After the display panels 11 are spliced ​​with the display panels 11, each display panel 11 displays a partial image, and multiple display panels 11 can display a complete image. Since the frame 112 surrounds the display body 111, there is a frame 112 between two adjacent display panels 11, and the frame 112 cannot display an image, which will cause the picture actually displayed by the display device 1 to have a sense of segmentation, affecting the viewing comfort of the viewer. Therefore, it is necessary to eliminate the influence of the frame.

[0057] In a related technique, Figure 2 As shown, the display device 1 includes a grating film glass substrate 61, a prism 62, and two spliced ​​display panels 11. The optical axis center of the prism 62 and the geometric center of the two spliced ​​display panels 11 are at the same viewing horizontal position. The prism 62 can deflect the incident parallel light and deflect it to a different exit angle from the incident angle. Figure 2 It can be seen that the prism 62 only refracts the light e2 of the display body 111 to the visible area g1 of the human eye, and deflects the light e1 reflected by the frame 112 outside the visible area g1, that is, within the visible area g1, the frame 112 cannot be seen on the viewing plane.

[0058] It is understandable that in Figure 2 In the figure, the light ray e1 is represented by a solid line, and the light ray e2 is represented by a dotted line. The solid line and the dotted line are only used to distinguish the light rays emitted from different positions.

[0059] from Figure 2 It can be seen that when the viewer is in the viewing area g1, the frame 112 cannot be seen; when the viewer moves to the side viewing area g2, the viewer can see the frame 112, so the related technology cannot well achieve the seamless display of naked-eye 3D effect.

[0060] In another related technique, Figure 3 As shown, the display device 1 includes a plurality of display panels 11 and a splicing optical system 63, wherein the splicing optical system 63 can eliminate the influence of the frame 112, thereby achieving a seamless display of naked-eye 3D effects. However, the splicing optical system 63 is large in size, high in cost and complex in assembly.

[0061] Based on this, an embodiment of the present application provides a display device 1, which can reduce the cost of the display device 1 while achieving a seamless naked-eye 3D effect. The display device 1 can be applied to an electronic device, and the electronic device can be, for example, a display screen. For example, the electronic device can be a naked-eye 3D spliced ​​display screen or a light field spliced ​​display screen. In addition to the display device 1, the electronic device can also include a housing and a controller, and the display device 1 and the controller are both fixed to the housing.

[0062] For the convenience of description, three directions may be defined, namely, a first direction (X direction), a second direction (Y direction) and a third direction (Z direction). The X direction represents the length direction of the display device 1, the Y direction represents the width direction of the display device 1, and the Z direction represents the height direction of the display device 1. Moreover, the X direction, the Y direction and the Z direction are perpendicular to each other.

[0063] like Figure 4 As shown, the display device 1 includes a plurality of spliced ​​display modules 100. The number of display modules 100 can be two, four, six, etc. For example, Figure 4 and Figure 5a As shown, the display device 1 includes two spliced ​​display modules 100. For an image to be displayed on the display device 1, each display module 100 can display a portion of the image, and multiple display modules 100 can display a complete image.

[0064] like Figure 6 As shown, each display module 100 includes: a display panel 11 , an optical fiber assembly 20 , a first optical element 30 and a second optical element 40 .

[0065] The display panel 11 may be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display panel, a sub-millimeter light-emitting diode (Mini light-emitting diode, MiniLED) display panel, or a micro light-emitting diode (microlight-emitting diode, microLED) display panel. The display panel 11 may load an image source and display a 2D image. The image source may be a 2D image source or a 3D image source. It is understood that in the process of the display panel 11 displaying a 2D image, it may also be understood that the display panel 11 emits light outward.

[0066] like Figure 7As shown, the display panel 11 includes a display body 111 and a frame 112 surrounding the display body 111. The frame 112 includes a first frame 113 extending along the X direction, two second frames 114 extending along the Y direction, and a third frame 115 extending along the X direction. The first frame 113 and the third frame 115 are opposite to each other, and the two second frames 114 are opposite to each other, and the two second frames 114 are respectively connected between the first frame 113 and the third frame 115. The display body 111 is used to display 2D images, and the first frame 113, the second frame 114 and the third frame 115 are all black and do not display images.

[0067] The frames 112 of two adjacent display modules 100 are connected. Figure 5a As shown, when the display device 1 includes two display modules 100, in two adjacent display modules 100, the first frame 113 of one display module 100 is connected to the third frame 115 of the other display module 100. Figure 5b As shown, when the display device 1 includes four display modules 100, among the two display modules 100 arranged along the Y direction, the first frame 113 of one display module 100 is connected to the third frame 115 of the other display module 100, and the second frames 114 of the two display modules 100 arranged along the X direction are connected.

[0068] The resolution of the display panel 11 can be 7680*4320, the size L1 of the display body 111 along the Y direction can be 698.112 mm, the size L2 of the display body 111 along the X direction can be 392.688 mm, the width dimension a of the first frame 113 along the Y direction can be 19.688 mm, and the width dimension L3 of the second frame 114 along the X direction can be 19.812 mm.

[0069] like Figure 8 As shown, the display body 111 of the display panel 11 may include a plurality of display units 116, and the size w of each display unit 116 along the X direction is the same as the size w along the Y direction, and the size w may range from 30 to 110 μm. For example, the size w may be 30.3 μm.

[0070] like Figure 6 As shown, the optical fiber assembly 20 can be arranged on the display panel 11. For example, the optical fiber assembly 20 can be fixed to the display panel 11 by glue. The optical fiber assembly 20 includes a first end face 21 and a second end face 22 opposite to each other. The first end face 21 faces the display panel 11, and the second end face 22 is away from the display panel 11.

[0071] The optical fiber assembly 20 may be a tapered optical fiber assembly 20. Specifically, Figure 4As shown in FIG. 1 , the area of ​​the first end face 21 of the optical fiber assembly 20 is smaller than the area of ​​the second end face 22 of the optical fiber assembly 20. Exemplarily, the length dimension of the first end face 21 is the same as the length dimension of the second end face 22, and the width dimension of the second end face 22 is greater than the width dimension of the first end face 21. It can be understood that when the second end face 22 and the first end face 21 extend along the X direction, as shown in FIG. Figure 6 As shown, the length dimension of the second end face 22 may refer to the dimension of the second end face 22 along the X direction. The width dimension L4 of the second end face 22 may refer to the dimension of the second end face 22 along the Y direction. The length dimension of the first end face 21 may refer to the dimension of the first end face 21 along the X direction. The width dimension b of the first end face 21 may refer to the dimension of the first end face 21 along the Y direction. When the second end face 22 and the first end face 21 extend along the Y direction, the length dimension of the second end face 22 may refer to the dimension of the second end face 22 along the Y direction. The width dimension L4 of the second end face 22 may refer to the dimension of the second end face 22 along the X direction. The length dimension of the first end face 21 may refer to the dimension of the first end face 21 along the Y direction. The width dimension b of the first end face 21 may refer to the dimension of the first end face 21 along the X direction.

[0072] The optical fiber assembly 20 may include a plurality of optical fibers 23 arranged in a rectangular array. Figure 6 As shown, the optical fiber 23 extends along the Z direction or the angle between the extension direction of the optical fiber 23 and the Z direction is an acute angle. Two adjacent optical fibers 23 are fitted and connected. Since the optical fiber assembly 20 is arranged on the display panel 11, and the projection of the first end face 21 on the display panel 11 is located within the range of the display body 111, the light output from the area covered by the first end face 21 on the display body 111 can be transmitted to the first optical element 30 through the optical fiber 23 in the optical fiber assembly 20.

[0073] When the optical fiber assembly 20 is a tapered optical fiber assembly, each optical fiber 23 is also a tapered optical fiber. Figure 6 As shown, the diameter d2 of the end face of the optical fiber 23 facing away from the display panel 11 is larger than the diameter d1 of the end face of the optical fiber 23 facing the display panel 11. In the process of manufacturing the optical fiber assembly 20, multiple optical fibers 23 of the same size can be arranged in a rectangular array, and each two adjacent optical fibers 23 are attached to each other. The surface of the optical fiber 23 is melted by heating to achieve the connection between the optical fibers 23. By drawing one end, the end face area of ​​the drawn end is smaller than the end face area of ​​the other end, so as to form a tapered optical fiber assembly.

[0074] like Figure 6As shown, the projection of the first end face 21 of the optical fiber assembly 20 on the display panel 11 is located within the range of the display body 111, so the area on the display body 111 covered by the first end face 21 of the optical fiber assembly 20 can output a 2D image, that is, can output light. The first optical element 30 is arranged on the second end face 22 of the optical fiber assembly 20, so the light output from the area on the display body 111 covered by the first end face 21 can be output to the first optical element 30 through the optical fiber assembly 20. The first optical element 30 can convert the received light into an ultra-dense directional light beam, thereby restoring the luminous information of the real object to achieve 3D display, thereby converting the received 2D image into a 3D image.

[0075] The projection of the second end surface 22 of the optical fiber assembly 20 on the display panel 11 covers part of the display body 111 and the frame 112 connected to other display modules 100. It can be understood that Figure 5a As shown, when the number of the frame 112 connected to the other display module 100 is one, the projection of the second end surface 22 on the display panel 11 covers part of the display body 111 and one frame 112. For example, Figure 6 As shown, the projection of the second end surface 22 on the display panel 11 covers part of the display body 111 and the first frame 113. Figure 5b As shown, when the number of frames 112 connected to other display modules 100 is two, the projection of the second end surface 22 on the display panel 11 covers part of the display body 111 and the two frames 112. Exemplarily, the projection of the second end surface 22 on the display panel 11 covers part of the display body 111 and the first frame 113 and the second frame 114. When each frame 112 in a certain display module 100 is connected to other display modules 100, the projection of the second end surface 22 on the display panel 11 covers part of the display body 111 and all frames 112 of the display module 100.

[0076] The second optical element 40 may be disposed on the display body 111. Exemplarily, the second optical element 40 may be disposed in an area of ​​the display body 111 that is not covered by the optical fiber assembly 20. The display body 111 may output a 2D image to the second optical element 40, that is, output light, and the second optical element 40 may convert the received light into an ultra-dense directional light beam, thereby restoring the luminous information of a real object to achieve 3D display, thereby converting the received 2D image into a 3D image. Therefore, the display panel 11 may also form a partial 3D image of the image displayed in the portion of the display body 111 that is not covered by the optical fiber assembly 20 through the second optical element 40. The partial 3D image formed by the first optical element 30 and the partial 3D image output by the second optical element 40 constitute the 3D image displayed by each display module 100.

[0077] Since the projection of the first end face 21 of the optical fiber component 20 on the display panel 11 is located within the range of the display body 111, and the second end face 22 is on part of the display body 111 of the display panel 11 and the frame 112 connected to other display modules 100, the 3D image output by the optical fiber component 20 can cover the frame 112, thereby eliminating the influence of the frame 112 and achieving a seamless display of naked-eye 3D effect.

[0078] In addition, since the projection of the first end face 21 of the optical fiber assembly 20 on the display panel 11 is within the range of the display body 111, and the projection of the second end face 22 on the display panel 11 covers part of the display body 111 and the frame 112 connected to other display modules 100, the projection of the optical fiber assembly 20 on the display panel 11 is smaller than the projection of the display panel 11, that is, the present application can reduce the size of the optical fiber assembly 20. Since the optical fiber assembly 20 has a certain height in the Z direction, the present application can reduce the weight of the optical fiber assembly 20 and reduce the cost of the optical fiber assembly 20, thereby reducing the cost of the display device 1 while achieving a seamless display of naked-eye 3D effects.

[0079] like Figure 6 As shown, the projection of the second end face 22 on the display panel 11 covers the projection of the first end face 21 on the display panel 11. The 2D image output by the display body 111 covered by the first end face 21 in the display panel 11 can be output to the second end face 22 through the first end face 21. It can be understood that each display unit 116 in the display body 111 can output light, and the light output by each display unit 116 can form a 2D image. When the display panel 11 displays a 2D image, it is equivalent to the display panel 11 emitting light to the optical fiber assembly 20, and the light is output from the first end face 21 to the second end face 22, and the light is emitted to the first optical element 30 through the second end face 22. If the projection of the second end face 22 on the display panel 11 fails to cover the projection of the first end face 21 on the display panel 11, it means that the light output by the second end face 22 fails to cover the projection of the first end face 21 on the display panel 11, which will cause part of the 2D image output by the display body 111 to fail to be displayed, thereby causing the 3D image output by the display device 1 to be discontinuous. In the embodiment of the present application, the projection of the second end surface 22 on the display panel 11 covers the projection of the first end surface 21 on the display panel 11. In this way, the 2D image projected by the first end surface 21 on the display panel 11 can be displayed, thereby making the 3D image output by the display device 1 more continuous.

[0080] like Figure 4 and Figure 7As shown, the display body 111 can be divided into a first sub-display body 117 and a second sub-display body 118 arranged along the Y direction. The first sub-display body 117 and the second sub-display body 118 have the same size along the X direction. The first sub-display body 117 is closer to the first frame 113 than the second sub-display body 118. The optical fiber assembly 20 is provided in the first sub-display body 117, and the second optical element 40 is provided in the second sub-display body 118.

[0081] like Figure 6 As shown, the side of the optical fiber assembly 20 facing the second optical element 40 is attached to the second optical element 40. In this way, the optical fiber assembly 20 can output part of the 2D image output by the first sub-display body 117 to the first optical element 30 for 3D display, and the second optical element 40 can display part of the 2D output by the second sub-display body 118 in 3D, thereby being able to fully display the 2D image output by the display panel 11.

[0082] It can be understood that the side of the optical fiber assembly 20 facing the second optical element 40 is bonded to the second optical element 40 , which may mean that the side of the optical fiber assembly 20 facing the second optical element 40 is bonded to one side of the second optical element 40 by glue.

[0083] Regarding the positional relationship between the projection of the edge of the first end surface 21 toward the frame 112 on the display panel 11 and the edge of the frame 112 toward the display body 111, in a possible implementation manner, as shown in FIG. Figure 6 As shown, the projection of the edge of the first end surface 21 toward the frame 112 on the display panel 11 coincides with the edge of the frame 112 toward the display body 111. In this way, all 2D images displayed in the display body 111 can be output, that is, the 2D images displayed in the display panel 11 can be completely displayed.

[0084] In another possible implementation manner, there is a gap between the projection of the edge of the first end surface 21 facing the frame 112 on the display panel 11 and the edge of the frame 112 facing the display body 111 .

[0085] like Figure 6 As shown, the second end surface 22 has a first edge 221 and a second edge 222 opposite to each other, and the projection of the first edge 221 on the display panel 11 coincides with the edge of the frame 112 away from the display body 111. Exemplarily, when the display device 1 includes two display modules 100, the projection of the first edge 221 on the display panel 11 coincides with the edge of the first frame 113 away from the display body 111. Figure 4As shown, since the first frame 113 in one of the two adjacent display modules 100 is connected to the third frame 115 in the other display module 100, when the projection of the first edge 221 on the display panel 11 coincides with the edge of the frame 112 away from the display body 111, the first edges 221 of the second end surfaces 22 of the two adjacent display modules 100 are connected, so that there is no gap between the 3D images output by the two adjacent display modules 100, that is, the naked-eye 3D effect of seamless display can be better achieved.

[0086] It is understandable that the "overlap" here may refer to the overlap in theoretical design. Since there are often certain process errors or deviations in the actual production process, the "overlap" here may also allow a certain gap between the projection of the first edge 221 on the display panel 11 and the edge of the first frame 113 away from the display body 111.

[0087] Moreover, the projection of the second edge 222 on the display panel 11 coincides with the projection of the edge of the first end surface 21 away from the frame 112 on the display panel 11. In this way, the difference between the width dimension L4 of the second end surface 22 and the width dimension b of the first end surface 21 is the same as the width dimension a of the frame 112. Exemplarily, when the width dimension a of the frame 112 is 19.688 mm and the width dimension b of the first end surface 21 is 20 mm, the size of the second end surface 22 may be 39.688 mm.

[0088] It is understandable that if Figure 5b As shown, when the frame 112 extends along the X direction, the width dimension a of the frame 112 may refer to the dimension of the frame 112 along the Y direction. When the frame 112 extends along the Y direction, the width dimension a of the frame 112 may refer to the dimension of the frame 112 along the X direction.

[0089] Moreover, the "overlap" here may refer to the overlap in theoretical design. Since there are often certain process errors or deviations in the actual production process, the "overlap" here may also allow a certain gap between the projection of the second edge 222 on the display panel 11 and the projection of the edge of the first end face 21 away from the first frame 113 on the display panel 11.

[0090] Since the second optical element 40 is in contact with the side of the optical fiber assembly 20 facing the second optical element 40, that is, the second optical element 40 is in contact with the projection of the edge of the first end surface 21 facing the second optical element 40 on the display panel 11, the projection of the second edge 222 on the display panel 11 is in contact with the second optical element 40. As a result, the 3D image output by the second optical element 40 does not overlap with the 3D image output through the optical fiber assembly 20 and the first optical element 30, so that no double image will appear; moreover, there is no gap between the 3D image output by the second optical element 40 and the 3D image output through the optical fiber assembly 20 and the first optical element 30, so that the 3D image output by the display device 1 can be more continuous.

[0091] like Figure 6 As shown, with respect to the relationship between the width dimension b of the first end surface 21 and the width dimension a of the frame 112, in a possible implementation manner, the width dimension b of the first end surface 21 is of the same order of magnitude as the width dimension a of the frame 112. Exemplarily, when the width dimension a of the frame 112 is in the millimeter level, that is, dimension a is several millimeters; then the width dimension b of the first end surface 21 is also in the millimeter level, that is, dimension b is several millimeters. When the width dimension a of the frame 112 is in the centimeter level, that is, dimension a is several centimeters; then the width dimension b of the first end surface 21 is also in the centimeter level, that is, dimension b is several centimeters.

[0092] In another possible implementation, the relationship between the width dimension b of the first end surface 21 and the width dimension a of the frame 112 satisfies: b / a≤10. Exemplarily, when the width dimension a of the frame 112 is 19.688 mm, the width dimension b of the first end surface 21 may be 20 mm. In this way, the width dimension b of the first end surface 21 is small, thereby reducing the volume of the optical fiber assembly 20, thereby reducing the cost of the optical fiber assembly 20.

[0093] like Figure 6 As shown, the height h of the optical fiber assembly 20 along the Z direction is less than or equal to 20 mm, and the Z direction is the direction from the first end face 21 to the second end face 22. Exemplarily, the height h of the optical fiber assembly 20 along the Z direction can be 18 mm. As a result, the height of the optical fiber assembly 20 along the Z direction can be smaller, thereby reducing the volume of the optical fiber assembly 20 and reducing the cost of the optical fiber assembly 20.

[0094] Each optical fiber in the optical fiber assembly 20 has the same size. For example, each optical fiber has the same length, each light has the same end diameter facing away from the display panel 11 , and each optical fiber has the same end diameter d1 facing the display panel 11 .

[0095] The diameter d1 of the end face of each optical fiber 23 facing the display panel 11 is smaller than the dimension w of the display unit 116 along the X direction. Within the range of any display unit 116 in the first sub-display body 117, at least three optical fibers 23 are projected. The light projection can be the projection of the end face of the optical fiber 23 facing the display panel 11 on the display panel 11. The range of any display unit 116 includes three color channels of R, G and B, and at least three optical fibers 23 covered within the range of any display unit 116 can output the light of the three color channels respectively. For example, Figure 8 As shown, within the range of any display unit 116 , at least nine optical fibers 23 are covered with their end faces facing the display panel 11 and projected onto the display panel 11 .

[0096] The relationship between the diameter d2 of the end face of each optical fiber 23 away from the display panel 11, the diameter d1 of the end face of each optical fiber 23 toward the display panel 11, the width dimension a of the frame 112, and the width dimension b of the first end face 21 satisfies:

[0097]

[0098] like Figure 6 As shown, since the width dimension L4 of the second end surface 22 can be the sum of the width dimension a of the frame 112 and the width dimension b of the first end surface 21. Therefore, the ratio between the width dimension of the second end surface 22 and the width dimension of the first end surface 21 is Thus, each optical fiber 23 can amplify the optical fiber 23 output from the display body 111 by the same proportion, thereby making the 3D image output by the display device 1 more uniform. Exemplarily, when the dimension w of the display unit 116 along the X direction is 30.3 μm, the end face diameter d1 of the optical fiber 23 facing the display panel 11 can be 10.1 μm, and the end face diameter d2 of the optical fiber 23 away from the display panel 11 can be 20 μm.

[0099] like Figure 6 As shown, the first optical element 30 is fixed to the second end face 22 of the optical fiber assembly 20. For example, the first optical element 30 can be bonded to the second end face 22 by gluing.

[0100] Regarding the structure of the first optical element 30, in a possible implementation manner, as Figure 4 As shown, the first optical element 30 includes a first cylindrical lens array 31. Moreover, the first cylindrical lens arrays 31 in two adjacent display modules 100 are attached to each other. The first cylindrical lens array 31 is arranged on the optical fiber assembly 20, and the optical fiber assembly 20 is arranged on the first sub-display body 117, which can convert the 2D image output by the second sub-display body 118 into a 3D image for display, and can also reduce the loss of image brightness.

[0101] like Figure 5aAs shown, the included angle c1 between the extension direction of the first cylindrical lens 311 in the first cylindrical lens array 31 and the edge of the first frame 113 along the X direction ranges from 6° to 19°. For example, the included angle may be 6°, 10°, 15° or 19°.

[0102] In another possible implementation, the first optical element 30 includes a first parallax barrier grating, and the first parallax barrier grating 32 has a low cost, thereby reducing the cost of the display device 1.

[0103] In another possible implementation, Fig. 9 As shown, the first optical element 30 includes a first cylindrical lens array 31 and a first parallax barrier grating 32. The first cylindrical lens array 31 and the first parallax barrier grating 32 are disposed on the display body 111 and arranged along the optical path direction.

[0104] like Figure 6 As shown, the second optical element 40 is fixed to the display panel 11 and is located on the display body 111. More specifically, the second optical element 40 is located on the second sub-display body 118, for example, the second optical element 40 can be bonded to the second sub-display body 118 by gluing.

[0105] Regarding the structure of the second optical element 40, in a possible implementation manner, as Figure 6 As shown, the second optical element 40 includes a second cylindrical lens array 41. The second cylindrical lens array 41 is disposed on the second sub-display body 118 of the display panel 11, and can convert the 2D image output by the second sub-display body 118 into a 3D image for display, and can also reduce the loss of image brightness.

[0106] like Figure 5a As shown, the included angle c2 between the extension direction of the second cylindrical lens 411 in the second cylindrical lens array 41 and the edge of the first frame 113 along the X direction ranges from 6° to 19°. For example, the included angle may be 6°, 10°, 15° or 19°.

[0107] The relationship between the aperture p2 of the second cylindrical lens array 41 and the size w of the display unit 116 of the display panel 11 along the X direction satisfies: p2 / w≥2. For example, when the size w of the display unit 116 along the X direction is 30.3 μm, the aperture p2 of the second cylindrical lens array 41 may be 0.606 mm. It is understandable that, if Figure 5a As shown, the second cylindrical lens array 41 may include a plurality of second cylindrical lenses 411 arranged along the Y direction. The aperture p2 of the second cylindrical lens array 41 may refer to the aperture of the second cylindrical lens 411 .

[0108] The relationship between the aperture p1 of the first cylindrical lens array 31, the aperture p2 of the second cylindrical lens array 41, the width a of the frame 112, and the width b of the first end surface 21 satisfies: For example, when the aperture p2 of the second cylindrical lens array 41 can be 0.606 mm, the aperture p1 of the first cylindrical lens array 31 can be 1.202 mm. Since the optical fiber assembly 20 amplifies part of the light output from the display body 111, and the magnification is Therefore, when the ratio between the aperture p1 of the first cylindrical lens array 31 and the aperture p2 of the second cylindrical lens array 41 is also When , the 3D image output by the display device 1 can be made more uniform. It can be understood that, if Figure 5a As shown, the first cylindrical lens array 31 may include a plurality of first cylindrical lenses 311 arranged along the Y direction. The aperture p1 of the first cylindrical lens array 31 may refer to the aperture of the first cylindrical lens 311 .

[0109] In another possible implementation, the second optical element 40 includes a second parallax barrier grating 42 . The second parallax barrier grating 42 has a low cost, thereby reducing the cost of the display device 1 .

[0110] In another possible implementation, Fig. 9 As shown, the second optical element 40 includes a second cylindrical lens array 41 and a second parallax barrier grating 42. The second cylindrical lens array 41 and the second parallax barrier grating 42 are disposed on the display body 111 and arranged along the optical path direction.

[0111] In this embodiment, if Figure 4 As shown, the display module 100 may further include a backlight module 50, which is disposed on a side of the display panel 11 away from the optical fiber assembly 20, and is used to emit light to the display panel 11, and the emitted light at least covers the projection of the first end surface 21 on the display body 111. When the display panel 11 is a liquid crystal display, the projection of the second end surface 22 on the display panel 11 covers the projection of the first end surface 21 on the display panel 11, so that the image entering from the first end surface 21 can be magnified by the optical fiber assembly 20 and output from the second end surface 22, which results in the intensity of the light output from the second end surface 22 being reduced, that is, the intensity is lower than the intensity of the light output from the second optical element 40. The light emitted by the backlight module 50 can cover the projection of the first end surface 21 on the display body 111, thereby being able to compensate for the intensity of the light with reduced intensity, thereby making the brightness of the 3D image output by the display module 100 as uniform as possible.

[0112] The backlight module 50 includes a plurality of lamp groups, including a first lamp group 51 and a second lamp group 52. The light emitted by the first lamp group 51 covers the projection of the first end surface 21 on the display body 111, and the light emitted by the second lamp group 52 covers at least a portion of the display body 111. The first lamp group 51 and the second lamp group 52 are both connected to a controller, and the controller controls the intensity of the light emitted by the first lamp group 51 and the second lamp group 52, respectively, and sets the intensity of the light emitted by the first lamp group 51 to be higher than the intensity of the light emitted by the second lamp group 52, thereby enabling the display module 100 to better compensate for the intensity of the light output from the optical fiber assembly 20.

[0113] The projection of the first end surface 21 on the display panel 11 covers the projection of the first lamp group 51 on the display panel 11. For example, the dimension L5 of the first lamp group 51 along the Y direction is less than or equal to the width dimension b of the first end surface 21. Exemplarily, when the width dimension b of the first end surface 21 is 20 mm, the dimension L5 of the first lamp group 51 and the second lamp group 52 along the Y direction may also be 20 mm. Since the intensity of the light at the joint between the first optical element 30 and the second optical element 40 will gradually change, when the dimension L5 of the first lamp group 51 along the Y direction is less than the width dimension b of the first end surface 21, it indicates that the light emitted by the first lamp group 51 will irradiate a part of the first end surface 21, and the light emitted by the second lamp group 52 will irradiate another part of the first end surface 21, thereby enabling the light emitted by the backlight module 50 to better adapt to the gradually changing light intensity.

[0114] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A display device, characterized in that: A plurality of display modules are spliced ​​together, each of which comprises: A display panel, the display panel comprising a display body and a frame surrounding the display body; An optical fiber assembly, the optical fiber assembly is arranged on the display panel, the optical fiber assembly comprises a first end face and a second end face opposite to each other, the first end face faces the display panel, the projection of the first end face on the display panel is located within the range of the display body, and the projection of the second end face on the display panel covers part of the display body and the frame connected to other display modules; a first optical element, the first optical element being disposed on the second end surface, and the first optical element being used to form a 3D image; A second optical element is disposed on the display body and is used to form a 3D image.

2. The display device according to claim 1, characterized in that The projection of the second end surface on the display panel covers the projection of the first end surface on the display panel.

3. The display device according to claim 1 or 2, characterized in that: A side of the optical fiber assembly facing the second optical element is in contact with the second optical element.

4. The display device according to any one of claims 1 to 3, characterized in that: The second end surface has a first edge and a second edge opposite to each other, the projection of the first edge on the display panel coincides with the edge of the frame facing away from the display body, and the projection of the second edge on the display panel coincides with the projection of the edge of the first end surface facing the second optical element on the display panel.

5. The display device according to any one of claims 1 to 7, characterized in that: The display module also includes a backlight module, which is arranged on a side of the display panel away from the optical fiber assembly. The backlight module is used to emit light to the display panel, and the emitted light at least covers the projection of the first end surface on the display panel.

6. The display device according to claim 5, characterized in that: The backlight module includes multiple light groups, the light emitted by the first light group among the multiple light groups covers the projection of the first end surface on the display panel, and the light emitted by the second light group among the multiple light groups covers at least a portion of the display body, so that the intensity of light emitted by the first light group is higher than the intensity of light emitted by the second light group.

7. The display device according to claim 6, characterized in that: The projection of the first end surface on the display panel covers the projection of the first lamp group on the display panel.

8. The display device according to any one of claims 1 to 7, characterized in that: The relationship between the width dimension b of the first end surface and the width dimension a of the frame satisfies: b / a≤10.

9. The display device according to any one of claims 1 to 8, characterized in that: The height of the optical fiber assembly along a third direction is less than or equal to 20 mm, and the third direction is a direction from the first end face to the second end face.

10. The display device according to any one of claims 1 to 9, characterized in that: The optical fiber assembly includes a plurality of optical fibers, and the relationship between the diameter d2 of the end face of each optical fiber away from the display panel, the diameter d1 of the end face of the optical fiber toward the display panel, the width dimension a of the frame, and the width dimension b of the first end face satisfies:

11. The display device according to any one of claims 1 to 10, characterized in that: The first optical element includes a first cylindrical lens array and / or a parallax barrier grating; the second optical element includes a second cylindrical lens array and / or a parallax barrier grating.

12. The display device according to claim 11, characterized in that: The relationship between the aperture p1 of the first cylindrical lens array, the aperture p2 of the second cylindrical lens array, the width dimension a of the frame, and the width dimension b of the first end surface satisfies:

13. The display device according to any one of claims 1 to 12, characterized in that: The optical fiber assembly includes a plurality of optical fibers; The first end face covers at least three optical fiber projections within the range of any display unit in the projection on the display panel, and the optical fiber projection is the projection of the end face of the optical fiber facing the display panel on the display panel.

14. An electronic device, characterized in that: It comprises a shell and the display device according to any one of claims 1 to 13, wherein the display device is fixed in the shell.

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