Scanning display device

Abstract

A scanning display device includes a display panel, an optical fiber board, and a scanning light source module. The display panel includes a plurality of pixel areas. The optical fiber board includes a substrate and a plurality of flexible optical fibers. The substrate has a plurality of light-transmitting areas. The light-incident ends of the plurality of flexible optical fibers are respectively connected to the plurality of light-transmitting areas of the substrate, and the light-emitting ends of the plurality of flexible optical fibers are respectively connected to the plurality of pixel areas of the display panel. The scanning light source module includes a scanning control unit and a light-emitting unit. The light-emitting unit emits light, which illuminates the light-incident surface of the substrate to form an incident point. The scanning control unit continuously changes the incident position of the light on the light-incident surface, causing the incident point to move along a scanning path. During the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all or part of the light-transmitting areas of the substrate.

Description

Technical Field

[0001] This invention relates to a display device, and more particularly to a scanning display device. Prior Technology

[0002] Many displays use light-emitting diodes (LEDs) as light sources. Generally speaking, light sources can be roughly divided into two types. One type of light source is a backlight module composed of components such as LEDs, light guide plates, and diffusers. The other type of light source includes multiple LEDs, and the position and number of the multiple LEDs correspond to the position and number of multiple pixels of the display.

[0003] However, regardless of the type of light source mentioned above, its overall size must be matched with the size of the display and cannot be further reduced. Furthermore, different sizes of displays also require corresponding sizes of light sources, which increases manufacturing costs. Summary of the Invention

[0004] In view of the above, in one embodiment, a scanning display device is provided, including a display panel, an optical fiber plate, and a scanning light source module. The display panel includes a plurality of pixel areas. The optical fiber plate includes a substrate and a plurality of flexible optical fibers. The substrate has a plurality of light-transmitting areas, and each flexible optical fiber has a corresponding light-incident end and a light-exit end. The plurality of flexible optical fibers are located between the display panel and the substrate. The light-incident ends of the plurality of flexible optical fibers are respectively connected to the plurality of light-transmitting areas of the substrate, and the light-exit ends of the plurality of flexible optical fibers are respectively connected to the plurality of pixel areas of the display panel. The substrate has a light-incident surface facing away from the display panel. The scanning light source module includes a scanning control unit and a light-emitting unit. The light-emitting unit emits light, which illuminates the light-incident surface of the substrate to form an incident point. The scanning control unit continuously changes the incident position of the light on the light-incident surface, causing the incident point to move along the scanning path. During the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all or part of the light-transmitting areas of the substrate.

[0005] In summary, according to the scanning display device of the present invention, the light-emitting ends of multiple flexible optical fibers of the fiber optic plate are respectively connected to multiple pixel areas of the display panel, so that light can be transmitted to each pixel area through each flexible optical fiber to form a display image. This achieves the advantage that a single-size fiber optic plate can be used with display panels of various sizes. In addition, the scanning control unit of the scanning light source module can continuously change the incident position of light on the light-incident surface of the fiber optic plate, so that the incident point moves along the scanning path and enters different flexible optical fibers in sequence. This can reduce the number of light-emitting elements, thereby reducing manufacturing costs and maintenance difficulties. Simple Explanation of the Diagram

[0006] Figure 1 is a plan view of the first embodiment of the scanning display device of the present invention. Figure 2 is a partial perspective view of the first embodiment of the scanning display device of the present invention. Figure 3 is a perspective view of an embodiment of the scanning control unit of the present invention. Figure 4 is a scanning schematic diagram of the first embodiment of the scanning display device of the present invention. Figure 5 is a schematic diagram of the scan following Figure 4. Figure 6 is a plan view of a second embodiment of the scanning display device of the present invention. Figure 7 is a plan view of the third embodiment of the scanning display device of the present invention. Figure 8 is a partial perspective view of the fourth embodiment of the scanning display device of the present invention. Figure 9 is a scanning schematic diagram of the fourth embodiment of the scanning display device of the present invention. Figure 10 is a plan view of the fifth embodiment of the scanning display device of the present invention. Figure 11 is a scanning schematic diagram of the sixth embodiment of the scanning display device of the present invention. Implementation

[0007] For ease of explanation and clarity, the thickness or dimensions of the elements in the drawings are exaggerated, omitted, or approximated for the understanding and reading of those skilled in the art. Furthermore, the dimensions of each element are not their actual dimensions and are not intended to limit the implementation of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. The same reference numerals will be used to denote the same or similar elements in all drawings.

[0008] Figure 1 is a plan view of the first embodiment of the scanning display device of the present invention, and Figure 2 is a partial perspective view of the first embodiment of the scanning display device of the present invention. As shown in Figures 1 and 2, the scanning display device 1 includes a display panel 10, an optical fiber board 20, and a scanning light source module 30.

[0009] As shown in Figure 2, the display panel 10 includes a plurality of pixel areas 11, the number of which depends on the resolution of the display panel 10. For example, assuming the resolution of the display panel 10 is 1280×768, the number of pixel areas 11 is 1280×768, and the multiple pixel areas 11 are arranged in two dimensions to form a pixel array.

[0010] As shown in Figures 1 and 2, the fiber optic plate 20 includes a substrate 21 and a plurality of flexible optical fibers 25. The substrate 21 is an opaque plate and has a plurality of light-transmitting areas 22. The number of light-transmitting areas 22 corresponds to the number of pixel areas 11 of the display panel 10, and the plurality of light-transmitting areas 22 of the substrate 21 are arranged in a two-dimensional array to form a light-transmitting area array. In this embodiment, the substrate 21 has a light-incident surface 23 and a light-exit surface 24 facing each other. The light-incident surface 23 faces away from the display panel 10, and the light-exit surface 24 faces the display panel 10. Each light-transmitting area 22 is a hole that penetrates the light-incident surface 23 and the light-exit surface 24. Each light-transmitting area 22 can be circular (as shown in Figure 2), square, elliptical, or other irregular shapes, and is not limited thereto. However, the above embodiments are only examples. In some embodiments, the substrate 21 may also be partially made of a light-transmitting material to form the plurality of light-transmitting areas 22, and is not limited to the form of holes.

[0011] As shown in Figures 1 and 2, to clearly illustrate the relative relationship between the flexible optical fiber 25 and the light-transmitting area 22, only a portion of the flexible optical fiber 25 is depicted in each figure. In reality, the number of multiple flexible optical fibers 25 is the same as the number of multiple light-transmitting areas 22, which will be stated here first. In this embodiment, each flexible optical fiber 25 has a corresponding light-incident end 251 and a light-exit end 252, and the multiple flexible optical fibers 25 are located between the display panel 10 and the substrate 21. The light-incident ends 251 of the multiple flexible optical fibers 25 are respectively connected to multiple light-transmitting areas 22 of the substrate 21, and the light-exit ends 252 of the multiple flexible optical fibers 25 are respectively connected to multiple pixel areas 11 of the display panel 10.

[0012] Continuing from the above, for example, as shown in Figure 2, in this embodiment, each light-transmitting area 22 is a hole, and the light-incident end 251 of each flexible optical fiber 25 is fixed in each light-transmitting area 22. Therefore, when light shines from the light-incident surface 23 of the substrate 21 onto the light-transmitting area 22, the light can enter through the light-incident end 251 of the flexible optical fiber 25 and be transmitted to the light-out end 252.

[0013] In some embodiments, the size of the display panel 10 may be greater than or equal to the size of the fiber optic plate 20. When the size of the display panel 10 is greater than the size of the fiber optic plate 20, an optical diffusion component may be provided on the light-emitting side of the display panel 10 to further magnify the image. For example, as shown in Figures 1 and 2, in this embodiment, the size of the display panel 10 is greater than the size of the fiber optic plate 20, and the size of the pixel area 11 constituting the display panel 10 is greater than the size of the light-emitting end 252 of the flexible fiber optic cable 25. Therefore, in this embodiment, the scanning display device 1 further includes an optical diffusion plate 40, with the display panel 10 located between the optical diffusion plate 40 and the fiber optic plate 20. The optical diffusion plate 40 includes a plurality of light diffusion elements 41, such as a convex lens, a light diffusion sheet, or a light diffusion film. The number of the plurality of light diffusion elements 41 is the same as the number of the plurality of flexible fibers 25. The plurality of light diffusion elements 41 can be arranged in two dimensions to form a light diffusion array, and the positions of the plurality of light diffusion elements 41 correspond to the positions of the plurality of pixel areas 11 of the display panel 10. In this way, when light enters from the light-inlet end 251 of each flexible optical fiber 25 and is transmitted to the light-outlet end 252, each pixel area 11 can emit light to form an image area, and the light emitted by each pixel area 11 can be transmitted to the corresponding light-diffusing element 41, so that the image area of ​​each pixel area 11 is magnified by each light-diffusing element 41 to form a display screen corresponding to the size of the display panel 10.

[0014] Figure 3 is a perspective view of an embodiment of the scanning control unit of the present invention, Figure 4 is a scanning schematic diagram of a first embodiment of the scanning display device of the present invention, and Figure 5 is a scanning schematic diagram continuing from Figure 4. As shown in Figures 1 to 5, the scanning light source module 30 includes a scanning control unit 31 and a light-emitting unit 35. The light-emitting unit 35 is used to emit a light ray L1, and the light ray L1 illuminates the light-incident surface 23 of the substrate 21 to form an incident point P1. The scanning control unit 31 can continuously change the incident position of the light ray L1 on the light-incident surface 23, so that the incident point P1 moves along a scanning path S1.

[0015] As shown in Figures 1 to 5, in this embodiment, the scanning control unit 31 includes a reflector 32 and a drive member 33. The drive member 33 is connected to the reflector 32 and can drive the reflector 32 to swing to change the tilt angle. For example, as shown in Figure 3, the scanning control unit 31 is a microelectromechanical scanning mirror, and the drive member 33 can be an electrostatic, magnetic, or piezoelectric actuator to control the swing of the reflector 32. However, the above embodiments are only examples. In some embodiments, the drive member 33 can also be a device that can convert the input signal into mechanical motion or force. For example, the drive member 33 can be an electric motor, which can drive the reflector 32 to perform relative motion such as rotation or oscillation.

[0016] As shown in Figures 1 to 5, in this embodiment, the light-emitting unit 35 is a laser light-emitting unit and includes a red light emitter 36, a green light emitter 37, a blue light emitter 38, and an optical coupling element 50. The red light emitter 36, the green light emitter 37, and the blue light emitter 38 can emit red, green, and blue laser beams, respectively. The red, green, and blue laser beams can be coupled by the optical coupling element 50 to form a single laser beam (i.e., beam L1). For example, the optical coupling element 50 can use multiple optical fibers to couple the red, green, and blue laser beams to form beam L1. Beam L1 illuminates the reflector 32 and is reflected by the reflector 32 to the light-incident surface 23 of the substrate 21 to form the aforementioned incident point P1. The driving member 33 can drive the reflector 32 to continuously swing to change the reflection angle of beam L1, thereby continuously changing the incident position of beam L1 on the light-incident surface 23 (as shown by arrow A in Figure 1), so that the incident point P1 can move along the aforementioned scanning path S1.

[0017] Furthermore, as the incident point P1 moves along the scanning path S1, the position of the incident point P1 sequentially corresponds to all or part of the light-transmitting area 22 of the substrate 21. As shown in Figures 4 and 5, in order to clearly illustrate the movement process of the incident point P1, the number of light-transmitting areas 22 of the substrate 21 in this embodiment is 25. In fact, as mentioned above, the number of light-transmitting areas 22 and the number of pixel areas 11 are both determined by the resolution of the display panel 10. In this embodiment, the scanning path S1 includes a travel distance along a horizontal direction (e.g., the X-axis direction in Figure 4) and a travel distance along a vertical direction (e.g., the Y-axis direction in Figure 4). The horizontal and vertical directions are perpendicular to each other. During the movement of the incident point P1 along the scanning path S1, the position of the incident point P1 corresponds sequentially to all the light-transmitting areas 22 of the substrate 21. That is, the incident point P1 will pass through each light-transmitting area 22 during the movement of the incident point P1 along the scanning path S1. When the position of the incident point P1 corresponds to one of the light-transmitting areas 22, the light L1 can enter from the light-inlet end 251 of the corresponding flexible optical fiber 25 and be transmitted to the light-outlet end 252, and then transmitted to the corresponding pixel area 11 via the optical diffuser plate 40 (as shown in Figures 1 and 2).

[0018] In some embodiments, the scanning control unit 31 can continuously change the reflection angle of the light L1 so that the incident point P1 can repeatedly move along the scanning path S1 at a predetermined cycle. For example, the incident point P1 can complete one scanning operation of the scanning path S1 in 0.01 seconds to 0.1 seconds. In other words, the incident point P1 can complete 10 to 100 scanning operations of the scanning path S1 in 1 second, so that each pixel area 11 of the display panel 10 can continuously emit light to form the above-mentioned display image.

[0019] Therefore, in this embodiment of the invention, light L1 is transmitted to each pixel area 11 of the display panel 10 through multiple flexible optical fibers 25 of the optical fiber plate 20 to form a display image, achieving the advantage that a single-size optical fiber plate 20 can be used with display panels 10 of various sizes. In addition, the scanning control unit 31 of the scanning light source module 30 can continuously change the incident position of light L1 on the light incident surface 23 of the optical fiber plate 20, so that the incident point P1 moves along the scanning path S1 and enters different flexible optical fibers 25 in sequence, thereby reducing the number of light-emitting elements, and thus having advantages such as simplified parts, reduced size, low cost and easy maintenance.

[0020] Figure 6 is a plan view of the second embodiment of the scanning display device of the present invention. As shown in Figure 6, the difference between this embodiment and the first embodiment is that the scanning display device 2 of this embodiment further includes a collimating lens 39. The collimating lens 39 is located between the reflector 32 of the scanning control unit 31 and the light-incident surface 23 of the substrate 21. After being reflected by the reflector 32, the light L1 passes through the collimating lens 39 before illuminating the light-incident surface 23 of the substrate 21, so that the light L1 is perpendicular to the substrate 21 and is concentrated to illuminate the corresponding light-transmitting area 22 to avoid light energy loss.

[0021] Figure 7 is a plan view of the third embodiment of the scanning display device of the present invention. As shown in Figure 7, the difference between this embodiment and the first embodiment is that the size of the display panel 10a of the scanning display device 3 in this embodiment is the same as or similar to the size of the substrate 21 of the fiber optic plate 20, so that the size of each pixel area 11 of the display panel 10 is the same as or similar to the size of the light-emitting end 252 of the flexible fiber optic cable 25. Therefore, after the light-emitting ends 252 of the multiple flexible fibers 25 of the fiber optic plate 20 are respectively connected to the multiple pixel areas 11 of the display panel 10, a display image corresponding to the size of the display panel 10a can be directly formed without the need to separately set up the optical diffusion plate 40 to magnify the image.

[0022] Figure 8 is a partial perspective view of the fourth embodiment of the scanning display device of the present invention, and Figure 9 is a scanning schematic diagram of the fourth embodiment of the scanning display device of the present invention. As shown in Figures 8 and 9, the difference between this embodiment and the first embodiment described above is that the light-emitting unit 35a of the scanning display device 4 in this embodiment includes a circuit board 351a and a plurality of light-emitting elements 352a. For example, each light-emitting element 352a can be a light-emitting diode (LED) or a laser light emitter. The plurality of light-emitting elements 352a are arranged on the circuit board 351a. Each light-emitting element 352a emits a light L2 that irradiates the light-incident surface 23 of the substrate 21, and a plurality of incident points P2 are formed on the light-incident surface 23. The scanning control unit 31a can drive the light-emitting unit 35a to perform a linear movement relative to the fiber optic plate 20, so that each incident point P2 can move along a scanning path S2 and the scanning path S2 is a linear scanning path. In addition, during the movement of each incident point P2 along the scanning path S2, the position of each incident point P2 corresponds sequentially to a portion of the light-transmitting area 22 of the substrate 21.

[0023] For example, as shown in Figures 8 and 9, in this embodiment, multiple light-emitting elements 352a are arranged at intervals on the circuit board 351a along the arrangement direction (in this case, the Y-axis direction), and the number of light-emitting elements 352a is the same as the number of light-transmitting areas 22 in the aforementioned arrangement direction (in this case, the number of light-emitting elements 352a and the number of light-transmitting areas 22 in the arrangement direction are 8). Furthermore, the scanning control unit 31a can drive the light-emitting units 35a to move linearly in a direction perpendicular to the aforementioned arrangement direction, so that each incident point P2 passes through each light-transmitting area 22 in each row during the movement along the scanning path S2, causing each pixel area 11 of the display panel 10 to emit light and form a display image.

[0024] As shown in Figure 8, in this embodiment, the scanning control unit 31a includes a driving element 33a and a transmission element 34, with the transmission element 34 connected between the driving element 33a and the light-emitting unit 35a. In some embodiments, the driving element 33a is a device that can convert an input signal into mechanical motion or force; for example, the driving element 33a can be an electric motor. The transmission element 34 can be a gear transmission mechanism, a worm gear mechanism, or a cam mechanism, etc. Thus, when the driving element 33a is activated, the light-emitting unit 35a can be driven to move linearly relative to the fiber optic plate 20 via the transmission element 34.

[0025] Figure 10 is a plan view of the fifth embodiment of the scanning display device of the present invention. As shown in Figure 10, the difference between this embodiment and the fourth embodiment described above is that the light-emitting unit 35a and the fiber optic plate 20 in this embodiment have multiple light guide strips 51, such as optical fibers or strip-shaped light guide plates. One end of each of the multiple light guide strips 51 is connected to multiple light-emitting elements 352a of the light-emitting unit 35a, and the other end of each of the multiple light guide strips 51 is adjacent to the substrate 21 of the fiber optic plate 20. In this way, after the light emitted by each light-emitting element 352a is concentrated, it can be guided and transmitted from one end of each light guide strip 51 to the other end to illuminate the light-incident surface 23 of the substrate 21, thereby greatly reducing the loss of light energy and allowing the size of the light-emitting element 352a to be unrestricted. In addition, the smaller the distance between the other end of each light guide strip 51 and the substrate 21, the less light energy will be lost.

[0026] Figure 11 is a scanning schematic diagram of the sixth embodiment of the scanning display device of the present invention. As shown in Figure 11, the difference between this embodiment and the fourth embodiment is that the light-emitting unit 35b of the scanning display device 5 in this embodiment includes a circuit board 351b and a light-emitting element 352b. The light-emitting element 352b is disposed on the circuit board 351b. After the light emitted by the light-emitting element 352b illuminates the light-incident surface 23 of the substrate 21 to form an incident point P3, the scanning control unit 31a can drive the light-emitting unit 35b to perform a relative movement with respect to the fiber optic plate 20, so that the incident point P3 moves along a scanning path S3. The scanning path S3 includes a movement stroke along the horizontal direction (e.g., the X-axis direction in Figure 11) and a movement stroke along the vertical direction (e.g., the Y-axis direction in Figure 11). The horizontal direction and the vertical direction are perpendicular to each other. During the movement of the incident point P3 along the scanning path S3, the position of the incident point P3 corresponds sequentially to all the light-transmitting areas 22 of the substrate 21. That is, the incident point P3 will pass through each light-transmitting area 22 during the movement of the incident point P3 along the scanning path S3. When the position of the incident point P3 corresponds to one of the light-transmitting areas 22, the light emitted by the light-emitting element 352b can enter through the light-inlet end 251 of the corresponding flexible optical fiber 25 and be transmitted to the light-outlet end 252.

[0027] Although the technical content of the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0028] 1,2,3,4,5: Scanning display device 10,10a: Display panel 11: Pixel area 20: Fiber Optic Board 21:Substrate 22: Translucent Area 23: Light-receiving surface 24: Exposed surface 25: Flexible optical fiber 251: light input end 252: Light output end 30: Scanning light source module 31, 31a: Scanning control unit 32: Reflector 33, 33a: Drive components 34: Transmission components 35, 35a, 35b: Light-emitting units 351a, 351b: Circuit board 352a, 352b: Light-emitting components 36: Red light emitter 37: Green light emitter 38: Blue light emitter 39: Collimating Lens 40: Optical diffusion plate 41: Light diffusion element 50: Optical coupling element 51: Light guide strip L1, L2: Light rays P1, P2, P3: Incident points S1, S2, S3: Scan Path A: Arrow

Claims

1. A scanning display device, comprising: A display panel comprising a plurality of pixel areas; An optical fiber board includes a substrate and a plurality of flexible optical fibers. The substrate has a plurality of light-transmitting areas. Each flexible optical fiber has a light-incident end and a light-exit end. The flexible optical fibers are located between a display panel and the substrate. The light-incident ends of the flexible optical fibers are respectively connected to the light-transmitting areas of the substrate, and the light-exit ends of the flexible optical fibers are respectively connected to the pixel areas of the display panel. The substrate has a light-incident surface facing away from the display panel. A scanning light source module includes a scanning control unit and a light-emitting unit. The light-emitting unit emits a light, which illuminates the light-incident surface of the substrate to form an incident point. The scanning control unit continuously changes the incident position of the light on the light-incident surface, causing the incident point to move along a scanning path. During the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all or part of the light-transmitting areas of the substrate. The light-emitting unit includes a circuit board and a plurality of light-emitting elements arranged on the circuit board. Each light-emitting element emits light to form a plurality of incident points on the light-incident surface. The scanning control unit drives the light-emitting unit to perform a linear movement relative to the fiber optic plate, so that the scanning path forms a linear scanning path. During the movement of each incident point along the scanning path, the position of each incident point sequentially corresponds to some of the light-transmitting areas of the substrate. The light-emitting elements are arranged on the circuit board along an arrangement direction perpendicular to the direction of linear movement.

2. A scanning display device, comprising: A display panel comprising a plurality of pixel areas; An optical fiber board includes a substrate and a plurality of flexible optical fibers. The substrate has a plurality of light-transmitting areas. Each flexible optical fiber has a light-incident end and a light-exit end. The flexible optical fibers are located between a display panel and the substrate. The light-incident ends of the flexible optical fibers are respectively connected to the light-transmitting areas of the substrate, and the light-exit ends of the flexible optical fibers are respectively connected to the pixel areas of the display panel. The substrate has a light-incident surface facing away from the display panel. A scanning light source module includes a scanning control unit and a light-emitting unit. The light-emitting unit emits a light, which illuminates the light-incident surface of the substrate to form an incident point. The scanning control unit continuously changes the incident position of the light on the light-incident surface, causing the incident point to move along a scanning path. During the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all or part of the light-transmitting areas of the substrate. The light-emitting unit is a laser light-emitting unit, and the light is a laser light. The scanning control unit includes a reflector and a driving member. The driving member is connected to the reflector, and the light irradiates the reflector and is reflected to the light-incident surface of the substrate to form the incident point. The driving member drives the reflector to continuously swing to continuously change the incident position of the light on the light-incident surface. There is also a collimating lens between the reflector and the light-incident surface of the substrate. After being reflected by the reflector, the light passes through the collimating lens and irradiates the light-incident surface of the substrate.

3. The scanning display device as claimed in claim 2, wherein the scanning path includes a travel along a horizontal direction and a travel along a vertical direction, the horizontal direction and the vertical direction being perpendicular to each other, and during the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all of the light-transmitting areas of the substrate.

4. The scanning display device as claimed in claim 1, wherein a plurality of light guide strips are provided between the light-emitting unit and the fiber optic plate, one end of each light guide strip is connected to the light-emitting element, and the other end of each light guide strip is adjacent to the substrate of the fiber optic plate.

5. A scanning display device, comprising: A display panel comprising a plurality of pixel areas; An optical fiber board includes a substrate and a plurality of flexible optical fibers. The substrate has a plurality of light-transmitting areas. Each flexible optical fiber has a light-incident end and a light-exit end. The flexible optical fibers are located between a display panel and the substrate. The light-incident ends of the flexible optical fibers are respectively connected to the light-transmitting areas of the substrate, and the light-exit ends of the flexible optical fibers are respectively connected to the pixel areas of the display panel. The substrate has a light-incident surface facing away from the display panel. A scanning light source module includes a scanning control unit and a light-emitting unit. The light-emitting unit emits a light, which illuminates the light-incident surface of the substrate to form an incident point. The scanning control unit continuously changes the incident position of the light on the light-incident surface, causing the incident point to move along a scanning path. During the movement of the incident point along the scanning path, the position of the incident point sequentially corresponds to all or part of the light-transmitting areas of the substrate. The light-emitting unit includes a circuit board and a light-emitting element. The light-emitting element is disposed on the circuit board and emits light. The scanning control unit drives the light-emitting unit to perform a relative movement with respect to the fiber optic plate, so that the scanning path includes a horizontal movement and a vertical movement. The horizontal direction and the vertical direction are perpendicular to each other. During the movement of the incident point along the scanning path, the position of the incident point corresponds sequentially to all the light-transmitting areas of the substrate.

6. The scanning display device as described in claim 1, 2 or 5 further includes an optical diffusion plate, the display panel being located between the optical diffusion plate and the fiber optic plate, the optical diffusion plate including a plurality of light diffusion elements, each of which corresponds to one of the pixel areas.

7. The scanning display device as described in claim 1, 2 or 5, wherein the substrate has a light-emitting surface facing the display panel, each of the light-transmitting areas is a hole penetrating the light-incident surface and the light-emitting surface, and the light-incident end of each of the flexible optical fibers is fixed within each of the light-transmitting areas.

8. The scanning display device as claimed in claim 1, 2 or 5, wherein the light-transmitting areas of the substrate are arranged in a two-dimensional manner to form a light-transmitting area array, and the pixel areas of the display panel are arranged in a two-dimensional manner to form a pixel array.

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