Display module, display screen and electronic equipment

Abstract

The present application discloses a display module, a display screen and an electronic device. The display module includes a driving part, a pixel board, a plurality of pixel units and a bracket. The driving part and the pixel board are stacked, the bracket is connected and supported between the driving part and the pixel board, and the plurality of pixel units are fixedly connected to the bracket. The pixel board includes a light-blocking surface, a light-emitting surface and a plurality of pixel holes. Each pixel hole penetrates the light-blocking surface and the light-emitting surface, and the plurality of pixel holes are arranged in an array. Each pixel unit includes a prism and a rotating part. The rotating part is connected to the bracket and electrically connected to the driving part. The prism is connected to the rotating part. The prisms of the plurality of pixel units correspond to the plurality of pixel holes one by one. The white light provided by the backlight module passes through the driving part and is incident on the prism. The rotating part drives the prism to rotate. Among the plurality of dispersed light rays emitted by each prism, light rays of a band pass through the pixel hole corresponding to the prism, and the dispersed light rays passing through the plurality of pixel holes are imaged together on one side of the light-emitting surface of the pixel board.

Description

Technical Field

[0001] The present invention relates to the field of display-related technologies, and in particular to a display module, a display screen and an electronic device. Background Art

[0002] In the prior art, the common display screens used in small intelligent electronic devices are liquid crystal display screens and organic light emitting diode display screens. However, the liquid crystal cell of the liquid crystal display screen is thick and heavy, and the color purity of the organic light emitting diode display screen is not enough, which leads to poor user experience. Summary of the invention

[0003] The present application provides a display module, a display screen and an electronic device, which solve the technical problems of thick liquid crystal in liquid crystal display screens and insufficient color purity of organic light emitting diodes.

[0004] The embodiment of the present application provides a display module for a display screen, wherein the display screen includes a backlight module, wherein the backlight module provides parallel white light for the display module, wherein the display module includes a driving unit, a pixel board, a plurality of pixel units, and a bracket, wherein the driving unit and the pixel board are stacked in a thickness direction of the display module, the bracket is connected and supported between the driving unit and the pixel board, and a plurality of the pixel units are fixedly connected to the bracket and located between the driving unit and the pixel board;

[0005] The pixel plate comprises a light-blocking surface, a light-emitting surface and a plurality of pixel holes. Along the thickness direction of the pixel plate, the light-blocking surface and the light-emitting surface are arranged in back-to-back relation and the light-blocking surface faces the pixel unit. Each of the pixel holes penetrates the light-blocking surface and the light-emitting surface, and the plurality of pixel holes are arranged in an array.

[0006] Each of the pixel units comprises a prism and a rotating part, the rotating part is connected to the bracket and electrically connected to the driving part, the prism is connected to the rotating part, and the prisms of the plurality of pixel units correspond to the plurality of pixel holes one by one;

[0007] Along a thickness direction perpendicular to the display module, the white light provided by the backlight module passes through the driving unit and is incident on the prism, and the light emitted from the prism is light of several different bands after dispersion. The rotating unit drives the prism to rotate, and among the several dispersed light rays emitted by each prism, the light of one band passes through the pixel hole corresponding to the prism, and the dispersed light rays passing through the several pixel holes are imaged together on one side of the light-emitting surface of the pixel plate.

[0008] In this embodiment, the parallel white light provided by the backlight module is incident on the prism to achieve dispersion of the light. After the dispersion, several different bands are provided with several pixel holes and pixel plates for filtering. After the light is driven by the rotating part to rotate the prism, the light of the spectrum will move along the light-blocking surface. The rotating part will control the prism to rotate to the required angle to ensure that the light of the color that needs to be transmitted can pass through the corresponding pixel hole, and each pixel hole can only pass through one band of light. Several prisms rotate several pixel holes at the same time to pass through several different bands (colors) of light, thereby forming a display screen (imaging) on ​​the display side of the display module. Compared with the prior art liquid crystal display with thicker liquid crystal layer, leakage, and complex liquid crystal manufacturing, the display module of the present application has no liquid crystal layer and a simple structure, with relatively reduced weight and volume, and no leakage and other disadvantages. Compared with the organic light emitting diode display, the pixel unit of the display module of the present application does not have the risk of fast aging and screen burn-in.

[0009] In one embodiment, the driving unit can control the rotating parts of the plurality of pixel units to rotate separately. The driving unit controls the rotating parts to rotate independently, so that each prism can be controlled to rotate at different angles without being affected by other prisms, ensuring that the light incident on the pixel hole after passing through the prism is accurate.

[0010] In one embodiment, the distance between every two adjacent pixel holes is less than or equal to 0.2 mm. This ensures that the light passing through the plurality of pixel holes forms a continuous image, that is, the pixel holes and the intervals between the holes cannot be seen by the naked eye, and there will be no display discontinuity problem. Moreover, the smaller the spacing between the pixel holes, the denser the pixel units, the more pixels the display screen contains, the higher the resolution, the more colors displayed, the more complex and continuous the displayed image can be, and the richer the layers of the picture are, the more delicate and clear it is.

[0011] In one embodiment, the prism includes an exit surface and an incident surface, the exit surface and the incident surface are connected, the angle between the exit surface and the incident surface is 60 degrees, the exit surface and the incident surface are symmetrical with respect to the symmetry plane, and the angle of rotation of the exit surface and the incident surface compared to the symmetry plane is greater than or equal to 0 degrees and less than 60 degrees; wherein, the center line of the length direction of the prism is located on the symmetry plane, the symmetry plane is parallel to the blocking surface, and the axial direction of the pixel hole is perpendicular to the symmetry plane. In one embodiment, the cross-section of the prism is an equilateral triangle. No matter which angle is turned to, the light input direction and the light output direction can be guaranteed, so as to ensure that the dispersed light can accurately enter the pixel hole and the light blocking surface of the pixel plate. The angle of rotation of the exit surface and the incident surface compared to the symmetry plane is greater than or equal to 0 degrees and less than 60 degrees to ensure that each pixel hole can have light passing through.

[0012] In one embodiment, the bracket includes a plurality of sub-rods arranged in parallel, the opposite ends of the sub-rods are respectively connected to the driving part and the light blocking surface, and the sub-rods and the pixel holes are completely staggered;

[0013] The rotating part includes a rotating shaft, the axis of the rotating shaft coincides with the center line of the length direction of the prism, the rotating part is fixed on the sub-rod, and the center line of the prism is perpendicular to the sub-rod. The bracket is composed of several sub-rods, not several plates that simultaneously mount several pixel units, and is light in weight, which is conducive to reducing the weight of the display module. In addition, the sub-rods are used to install the pixel units, which facilitates the alignment of the pixel units and the pixel holes. The distance between every two adjacent sub-rods satisfies that every two pixel units have enough rotation gap and no extra gap is generated, thereby avoiding the generation of extra space inside the display screen.

[0014] In one embodiment, the rotating part includes a micro-nano motor, and the volume of the micro-nano motor is less than or equal to 0.1 mm. The micro-nano motor is used to drive the prism to rotate, which can ensure the accuracy of the rotation angle and save the volume of the display module.

[0015] In one embodiment, the driving unit is driven by a semiconductor thin film transistor, which includes a conductive layer, and a plurality of wirings of the conductive layer are connected one-to-one with a plurality of the rotating parts and are in conduction. This embodiment uses a semiconductor thin film transistor as a driver, which has a fast response speed, can achieve point-to-point response, can control each pixel unit, and improve the response sensitivity of the display module.

[0016] The present application also provides a display screen, which includes a backlight module and the display module, wherein the backlight module is located on the side of the driving unit facing away from the pixel plate, and the backlight module provides white light that passes through the driving unit and is incident on the prism. The display screen of this embodiment uses the above-mentioned display module to realize the display function, and has the advantages of fast response, small size, and richer colors of the displayed picture.

[0017] In one embodiment, the white light is natural light or composite white light. The backlight source uses white light, which has relatively low requirements. Moreover, after the white light passes through the display module for light dispersion, a spectrum composed of light with different wavelengths arranged in order of wavelength size is obtained, that is, the white light is refracted in the prism, and light with different wavelengths will be dispersed due to different refractive indices, forming a spectrum arranged in a certain order. In this way, the light of a certain band after dispersion can be controlled to enter the corresponding pixel hole through the rotation of the prism, thereby realizing the imaging of the display module.

[0018] The present application also provides an electronic device, the electronic device comprising a body and the display screen, the display screen is mounted on one side of the body, and the light emitting surface of the pixel plate faces away from the body. The display screen of this embodiment uses the above display screen to realize the display function, which can reduce the volume and have a stable display effect, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an electronic device provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the display screen of the electronic device shown;

[0022] Figure 3(a) shows Figure 2 A schematic side view of the interior of a portion of the structure of the display screen shown;

[0023] FIG3( b ) is a schematic side view of the interior of the display module of the display screen shown in FIG3( a );

[0024] Figure 4 A top view of the display module structure of the display screen shown in FIG3( b );

[0025] Figure 5 for Figure 4 A schematic diagram of the light path of some prisms of the display module in the initial state;

[0026] Figure 6 for Figure 5 The schematic diagram shows that some prisms of the display module are rotated in the counterclockwise direction by a certain angle;

[0027] Figure 7 for Figure 6 Schematic diagram of light paths of some prisms of the display module at different rotation angles;

[0028] Figure 8 for Figure 5 The schematic diagram shows that some prisms of the display module are rotated in a clockwise direction at a certain angle;

[0029] Fig. 9 for Figure 8 Schematic diagram of light paths of some prisms of the display module at different rotation angles. DETAILED DESCRIPTION

[0030] 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 only 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.

[0031] For ease of description, the terms "first", "second", "third", etc., hereinafter are used only for the purpose of describing the location, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1 , Figure 1 The three-dimensional structure diagram of the electronic device provided in the embodiment of the present application. The electronic device 1000 includes but is not limited to a mobile phone, a notebook computer, a tablet computer, a laptop computer, a television, a wearable device or a vehicle-mounted device, etc. In the embodiment of the present application, the electronic device 1000 is described by taking a mobile phone as an example.

[0033] For the convenience of description, the width direction of the electronic device 1000 is defined as the X-axis direction, the length direction of the electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the electronic device 1000 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are mutually perpendicular. It should be noted that the directional terms such as "top", "bottom", "upper", "lower", "left", and "right" involved in this application are referenced to the attached Figure 1 The description of the orientation shown, with the positive direction of the Y axis as "top", the negative direction of the Y axis as "bottom", the positive direction of the Z axis as "up", the negative direction of the Z axis as "down", the positive direction of the X axis as "right", and the negative direction of the X axis as "left", does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. Among them, the X direction is the length direction of the display module in the electronic device 1000, and the Y direction is the width direction of the display module.

[0034] The electronic device 1000 includes a body 200 and a display screen 100. The display screen 100 is installed on one side of the body 200. The body 200 includes a housing 210, a processor, a battery, a circuit board and other functional components for realizing the functions of a mobile phone. The battery and the display screen 100 are both electrically connected to the electronic device 1000. The battery is used to power the electronic device 1000, and the display screen 100 is used to display content such as incoming call information, news, weather information, etc., and synchronize the phone, text messages, emails, photos, music and other information in the functions of the electronic device 1000.

[0035] See also Figure 2 , Figure 2 for Figure 1 Schematic diagram of the exploded structure of the display screen in the electronic device shown. In this embodiment, the display screen 100 includes a backlight module 60, a display module 20 and a transparent cover plate 70. The backlight module 60, the display module 20 and the transparent cover plate 70 are stacked and connected in sequence. The backlight module 60 is facing away from the display side of the display module 20, providing white light for the display module 20, thereby improving the displayable color gamut range, color authenticity and color purity of the display screen 100. The transparent cover plate 70 covers the display side of the display module 20, and the transparent cover plate 70 is used to protect the display module 20 and achieve waterproof, dustproof and wear-resistant.

[0036] The backlight module 60 can be an electroluminescent film (EL), a cold cathode fluorescent lamp (CCFL) or a light emitting diode (LED) or other backlight modules or other light sources that can generate white light. The display screen 100 using white light has lower requirements on the light source and displays a greater color purity. Among them, the white light can include natural light or composite white light. The transparent cover plate 70 can be made of materials such as glass, resin or plastic with high light transmittance, and its outer surface has strong wear resistance. In this embodiment, the transparent cover plate 70 is a glass plate, and the light source of the backlight module 60 is an LED light bar. The backlight module 60 is a planar uniform lighting device. The LED light bar as a light source is arranged on the side of the entire backlight module 60 facing the display module 20, ensuring that the light emitted by the backlight module 60 is parallel light.

[0037] Please refer to Figure 3(a), Figure 3(b) and Figure 4 , Figure 3(a) is Figure 2 FIG3(b) is a schematic side view of the interior of a display module of the display screen shown in FIG3(a). Figure 4 FIG3( b ) is a top view of the display module structure of the display screen shown in FIG3( b ).

[0038] In this embodiment, the display module 20 includes a driving unit 21, a pixel board 23, a plurality of pixel units 22, a bracket 25 and an edge seal (not shown). Along the thickness direction of the display module 20, i.e., the Z-axis direction, the driving unit 21, the bracket 25 and the pixel board 23 are stacked in sequence. The bracket 25 is connected and supported between the driving unit 21 and the pixel board 23, so that the driving unit 21 and the pixel board 23 are connected and the driving unit 21 and the pixel board 23 are kept at a certain distance. Several pixel units 22 are fixedly connected to the bracket 25. The edge seal connects the driving unit 21 and the periphery of the pixel board 23, and encapsulates several pixel units 22 and the bracket 25 between the driving unit 21 and the pixel board 23 to prevent light leakage when several pixel units 22 are transmitting light. The driving unit 21 is stacked and connected to the backlight module 60, and the pixel board 23 is stacked and connected to the transparent cover plate 70.

[0039] In this embodiment, the driving unit 21 is driven by a semiconductor thin film transistor (Thin Film Transistor, TFT), which includes a conductive layer 211 and a TFT substrate 212. Specifically, a driving circuit and a light-transmitting area are provided on the TFT substrate 212, and the light-transmitting area is arranged in a matrix and alternately arranged with the driving circuit. The conductive layer 211 is formed on the side of the TFT substrate 212 facing away from the backlight module 60, and is electrically connected to the driving circuit of the TFT substrate 212. It can be understood that the TFT substrate 212 is a common semiconductor thin film transistor drive, and the specific structure can refer to the existing TFT drive, which is not repeated here. The semiconductor material can be α-si, LTPS, IGZO, etc. commonly used in display screens, which are not limited here. The conductive layer 211 can be a transparent wiring layer formed by indium tin oxide (Indium Tin Oxide, ITO), and the conductive layer 211 is used to transmit a driving signal (including a control signal and a power signal) to the pixel unit 22. In this embodiment, the conductive layer 211 is composed of several indium tin oxide wirings, and each pixel unit 22 is electrically connected to a wiring. In this embodiment, a TFT circuit combined with an indium tin oxide wiring drive is used, which can quickly respond to changes in the electric field and control the pixel unit 22, thereby realizing a fast image refresh of the display screen 100. This enables the display screen 100 to have a faster response time, which has advantages in game and dynamic image display. The fast response time can reduce image blur and afterimage, and provide a smoother visual experience. It can be understood that the conductive layer 211 is a pixel electrode layer.

[0040] Each pixel unit 22 includes a prism and a rotating part, and the prism is connected to the rotating part. The rotating part drives the prism to rotate. The rotating part is electrically connected to the conductive layer 211 of the driving part 21. The prism of this embodiment is a cylindrical triangular prism, including three prism faces and two end faces. Along the Z direction, that is, along the thickness direction of the display module 20, the three prism faces surround two relatively parallel end faces, and the three prism faces are fixedly connected to the two end faces. The three prism faces are named as the first prism face, the second prism face and the third prism face in clockwise order. The end faces include the first end face and the second end face. In this embodiment, the shape of the end faces is an equilateral triangle, which can also be understood as that the angle between the three prism faces is 60 degrees. For the convenience of description, this embodiment is described by taking three adjacently arranged pixel units 22 on a certain column in the display module 20 as an example, that is, the three pixel units 22 are named as the first pixel unit 26, the second pixel unit 27 and the third pixel unit 28. It should be explained that the "several" here means more than two, and the same explanation is given below. The array arrangement of the pixel units 22 enables the display screen 100 to have a wider visual range, so that the image quality remains consistent when viewed from different angles. The pixel units are described in detail below by taking the first pixel unit 26, the second pixel unit 27 and the third pixel unit 28 as examples.

[0041] The pixel plate 23 is a rectangular thin plate, which includes a substrate 231 and a plurality of pixel holes 232 arranged in an array. The substrate 231 may be a glass plate, a light-transmitting plastic plate, etc. The light-shielding layer may be an ink layer or other coating. Specifically, the substrate 231 includes a light-blocking surface 233 and a light-emitting surface 234. Along the thickness direction of the pixel plate 23, the light-blocking surface 233 and the light-emitting surface 234 are arranged back to back. Specifically, a light-shielding layer (not shown) is coated on the surface of the pixel plate 23 facing away from the light-emitting surface 234. The light-shielding layer in this embodiment may be an ink layer, and the surface on which the light-shielding layer is formed is the light-blocking surface 233.

[0042] In this embodiment, the pixel holes 232 penetrate the light blocking surface 233 and the light emitting surface 234 of the pixel plate 23, and a plurality of the pixel holes 232 are arranged in an array, and the pixel holes 232 are used for the light emitted by the pixel units 22 to pass through. Each pixel hole 232 corresponds to each pixel unit 22 one by one. Exemplarily, corresponding to the first pixel unit 26, the second pixel unit 27 and the third pixel unit 28, the pixel holes 232 include a first pixel hole 2321, a second pixel hole 2322 and a third pixel hole 2323.

[0043] The light blocking surface 233 is used to block, reflect or absorb light emitted from the pixel unit 22. Specifically, the light blocking surface 233 is provided with an ink coating, and the pixel hole 232 penetrates the ink coating. It can be understood that the ink coating is applied to the surface of the pixel plate 23 and then punched to form the pixel hole. The area provided with the ink coating is a blocking area, which is used to block, reflect or absorb light emitted from the pixel unit 22 that is not required to form a display screen.

[0044] In one embodiment, the spacing between every two adjacent pixel holes 232 is less than 0.2 mm. The pixel holes 232 can ensure that light of multiple wavelengths passes through the pixel unit 22, and ensure that the light passing through several pixel holes 232 forms a continuous image. That is, it cannot be seen by the naked eye, and there will be no problem of discontinuous display. Moreover, the pixel size can be adjusted according to the requirements and usage scenarios of the display screen. In fact, the smaller the spacing between the pixel holes 232, the denser the pixel units 22, the more pixels the display screen 100 contains, the higher the resolution, the more colors displayed, the displayed image can be more complex and continuous, and the layers of the picture are richer, more delicate and clear.

[0045] The bracket 25 is connected between the side of the driving part 21 provided with the conductive layer 211 and the light-blocking surface 233 of the pixel plate 23. In this embodiment, the bracket 25 can be a plastic part, and the bracket 25 includes several sub-rods. Several sub-rods are arranged in parallel and at intervals, and the length direction of the several sub-rods is parallel to the thickness direction of the display module 20. Each sub-rod is connected between the side of the driving part 21 provided with the conductive layer and the light-blocking surface of the pixel plate 23, and a pixel unit 22 is fixed on each sub-rod. Among them, the bracket 25 is composed of several sub-rods, not several plates with several pixel units installed at the same time, and the weight is light, which is conducive to reducing the weight of the display module 20. Moreover, the sub-rods are used to install the pixel units, which facilitates the alignment of the pixel units and the pixel holes. Exemplarily, corresponding to the first pixel unit 26, the second pixel unit 27 and the third pixel unit 28, the sub-rods include a first sub-rod 251, a second sub-rod 252 and a third sub-rod 253. The first pixel unit 26, the second pixel unit 27 and the third pixel unit 28 are connected to the first sub-rod 251, the second sub-rod 252 and the third sub-rod 253 respectively. It should be noted that the sub-rods are completely staggered with the pixel holes to prevent the sub-rods from being exposed on the display side of the display module. The distance between every two adjacent sub-rods satisfies that every two pixel units 22 have enough rotation gap and no extra gap is generated, thereby avoiding the generation of extra space inside the display screen 100, thereby reducing the volume of the electronic device and giving the user a light and thin experience.

[0046] In this embodiment, the first pixel unit 26 includes a first prism 261 and a first rotating part 262. The first prism 261 is connected to the first rotating part 262. The first rotating part 262 includes a first micro-nano motor 2621. The first micro-nano motor 2621 includes a first rotating shaft 2621a, and the first micro-nano motor 2621 drives the first rotating shaft 2621a to rotate. The first prism 261 includes a first prism surface 2611, a second prism surface 2612, a third prism surface 2613, a first end surface 2614 and a second end surface 2615. The first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 are sequentially connected clockwise to form a triangular prism, and are fixedly connected to the first end surface 2614 and the second end surface 2615. The first end surface 2614 and the second end surface 2615 are relatively parallel to each other along the extension direction of the prism 261, and the first end surface 2614 and the second end surface 2615 are both equilateral triangles. It can be explained that the cross section of the triangular prism formed by the first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 is an equilateral triangle, and the angle between the first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 is 60 degrees.

[0047] The second pixel unit 27 includes a second prism 271 and a second rotating part 272. The second prism 271 is connected to the second rotating part 272. The second rotating part 272 includes a second micro-nano motor 2721, and the second micro-nano motor 2721 includes a second rotating shaft 2721a. The second micro-nano motor 2721 drives the second rotating shaft 2721a to rotate. The second prism 271 includes a first prism face 2711, a second prism face 2712, a third prism face 2713, a first end face 2714 and a second end face 2715. The first prism face 2711, the second prism face 2712 and the third prism face 2713 are connected in clockwise order to form a triangular prism, and are fixedly connected to the first end face 2714 and the second end face 2715. The first end face 2714 and the second end face 2715 are relatively parallel to each other along the extension direction of the second prism 271. The first end face 2714 and the second end face 2715 are both equilateral triangles. It can be interpreted that the cross-section of the triangular prism formed by the first prism face 2711, the second prism face 2712 and the third prism face 2713 is an equilateral triangle, and the angle between the first prism face 2711, the second prism face 2712 and the third prism face 2713 is 60 degrees.

[0048] The third pixel unit 28 includes a third prism 281 and a third rotating part 282. The third prism 281 is connected to the third rotating part 282. The third rotating part 282 includes a third micro-nano motor 2821, and the third micro-nano motor 2821 includes a third rotating shaft 2821a and, and the third micro-nano motor 2821 drives the third rotating shaft 2821a to rotate. The third prism 281 includes a first prism surface 2811, a second prism surface 2812, a third prism surface 2813, a first end surface 2814 and a second end surface 2815. The first prism face 2811, the second prism face 2812 and the third prism face 2813 are connected in sequence clockwise to form a triangular prism, and are fixedly connected to the first end face 2814 and the second end face 2815. The first end face 2814 and the second end face 2815 are relatively parallel at both ends along the extension direction of the third prism 281. The first end face 2814 and the second end face 2815 are both equilateral triangles. It can be explained that the cross-section of the triangular prism formed by the first prism face 2811, the second prism face 2812 and the third prism face 2813 is an equilateral triangle, and the angle between the first prism face 2811, the second prism face 2812 and the third prism face 2813 is 60 degrees.

[0049] The first micro-nano motor 2621, the second micro-nano motor 2721 and the third micro-nano motor 2821 have the same structure, are all cubes with a size less than 0.1 mm, and can be solid-state optical nano motors, light-driven motors, ultrasonic-driven micro-nano motors, etc., or traditional electromagnetic coils. The first prism 261, the second prism 271 and the third prism 281 are micro prisms. The axis of the rotating shaft coincides with the center line of the prism.

[0050] The first pixel unit 26, the second pixel unit 27 and the third pixel unit 28 are fixedly connected to the first sub-rod 251, the second sub-rod 252 and the third sub-rod 253, respectively. Specifically, the first rotating portion 262 is connected to the first sub-rod 251 and is located at one side of the first sub-rod 251. In this embodiment, the first rotating portion 262 is located at a side of the first sub-rod 251 that is perpendicular to the pixel board 23. The second rotating portion 272 is connected to the second sub-rod 252 and is located at one side of the second sub-rod 252. In this embodiment, the second rotating portion 272 is located at a side of the second sub-rod 252 that is perpendicular to the pixel board 23. The third rotating portion 282 is connected to the third sub-rod 253 and is located at one side of the third sub-rod 253. In this embodiment, the third rotating portion 282 is located at a side of the third sub-rod 253 that is perpendicular to the pixel board 23.

[0051] The first pixel unit 26, the second pixel unit 27 and the third pixel unit 28 are respectively arranged corresponding to the first pixel hole 2321, the second pixel hole 2322 and the third pixel hole 2323. It can be explained that the first pixel hole 2321 is used for light passing through the first prism 261, the second pixel hole 2322 is used for light passing through the second prism 271, and the third pixel hole 2323 is used for light passing through the third prism 281.

[0052] The first prism 261 is mounted on the first rotating shaft 2621a of the first rotating part 262. The length extension direction of the first rotating shaft 2621a is consistent with the length extension direction of the first prism 261. The first prism 261 and the first rotating part 262 are located on the same side of the first sub-rod 251. Specifically, the first rotating part 262 is fixedly connected to the side of the first sub-rod 251 facing the second end face 2615. The extension direction of the first rotating shaft 2621a and the first prism 261 is perpendicular to the extension direction of the first sub-rod 251. The first rotating shaft 2621a passes through the first end face 2614 of the first prism 261 and extends to the second end face 2615 to ensure the rotation stability of the first prism 261. The first micro-nano motor 2621 drives the first rotating shaft 2621 to rotate, thereby driving the first prism 261 connected to the first rotating shaft 2621 to rotate.

[0053] The second prism 271 is mounted on the second rotating shaft 2721a of the second rotating part 272. The extension direction of the second rotating shaft 2721a is consistent with the length extension direction of the second prism 271. The second prism 271 and the second rotating part 272 are located on the same side of the second sub-rod 252. Specifically, the second rotating part 272 is fixedly connected to the side of the second sub-rod 252 facing the second end face 2715. The extension direction of the second rotating shaft 2721a and the second prism 271 is perpendicular to the extension direction of the second sub-rod 252. The second rotating shaft 2721a passes through the first end face 2714 of the second prism 271 and extends to the second end face 2715 to ensure the rotation stability of the second prism 271. The second micro-nano motor 2721 drives the second rotating shaft 2721a to rotate, thereby driving the second prism 271 connected to the second rotating shaft 2721a to rotate.

[0054] The third prism 281 is mounted on the third rotating shaft 2821a of the third rotating part 282. The length extension direction of the third rotating shaft 2821a is consistent with the length extension direction of the third prism 281. The third prism 281 and the third rotating part 282 are located on the same side of the third sub-rod 253. Specifically, the third rotating part 282 is fixedly connected to the side of the third sub-rod 253 facing the second end face 2815. The extension direction of the third rotating shaft 2821a and the third prism 281 is perpendicular to the extension direction of the third sub-rod 253. The third rotating shaft 2821a runs through the first end face 2814 of the third prism 281 and extends to the second end face 2815 to ensure the rotation stability of the third prism 281. The third micro-nano motor 2821 drives the third rotating shaft 2821a to rotate, thereby driving the third prism 281 connected to the third rotating shaft 2821a to rotate. It is understandable that the first prism 261 , the second prism 271 , and the third prism 281 can maintain independent rotation angles without interfering with each other.

[0055] The first pixel unit 26, the second pixel unit 27 and the third pixel unit 28 are located on the same side of the first sub-rod 251, the second sub-rod 252 and the third sub-rod 253. Along the length direction of the prism, the central axes of the first prism 261, the second prism 271 and the third prism 281 are parallel to each other, and the first rotation axis 2621a, the second rotation axis 2721a and the third rotation axis 2821a are parallel to each other.

[0056] The first rotating portion 262, the second rotating portion 272 and the third rotating portion 282 are all electrically connected to the conductive layer 211. The first rotating portion 262, the second rotating portion 272 and the third rotating portion 282 are respectively connected to an ITO trace.

[0057] In this embodiment, the driving part 21 is used to drive the first rotating part 262, the second rotating part 272, and the third rotating part 282 to rotate. After receiving the driving command, the first rotating part 262, the second rotating part 272, and the third rotating part 282 drive the first prism 261, the second prism 271, and the third prism 281 to rotate. The driving command includes a signal for rotation and a required rotation angle. According to actual needs, the driving part 21 can simultaneously drive the first rotating part 262, the second rotating part 272, and the third rotating part 282 to rotate at different angles, that is, the first rotating part 262, the second rotating part 272, and the third rotating part 282 can rotate at different angles.

[0058] The display screen 100 may also include a chip electrically connected to the driving unit 21. The chip (having a control module or an identification module, etc.) can obtain user input instructions and generate a control signal according to the user input instructions; the chip can also transmit the control signal to the rotating part of each pixel unit 22 to drive the prism to rotate for display. That is, the driving unit 21 of the pixel unit 22 is controlled by the chip to drive the rotating part of each pixel unit 22, so that each prism can rotate, and ensure that the light emitted from the exit surface is accurately filtered and emitted through the pixel hole 232. The angle of rotation can be flexibly controlled by the driving unit 21 according to actual needs, and the driving unit 21 drives the corresponding rotating part to rotate flexibly at all times, driving the corresponding prism to rotate at all times, avoiding the problem of slow dynamic response speed, and improving the user's viewing experience. For example, the position and rotation state of the prism are explained by taking the first prism 261 as an example. The length direction of the first prism 261 is perpendicular to the thickness direction of the display module 20, and the first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 are at an angle to the light blocking surface 233 of the pixel plate 23. At least one of the first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 faces the pixel plate 23, ensuring that after the light passing through the first prism 261 is dispersed, the required light will definitely pass through the corresponding pixel hole 232, thereby ensuring the continuity and clarity of the display image. Regardless of whether the first prism 261 rotates counterclockwise or clockwise relative to the pixel plate 23, only one of the first prism surface 2611, the second prism surface 2612 and the third prism surface 2613 serves as the light incident surface, and the other prism surface serves as the light exit surface.

[0059] In this embodiment, when the display screen 100 is working, the white light 61 emitted by the backlight module 60 is a parallel light. Parallel light means that the light extending in the same direction is equidistant everywhere; it forms a line in the same direction without intersecting. The parallelism of this embodiment allows the existence of a tolerance for the deviation in the emission or propagation. The tolerance range belongs to the parallel light range and does not affect the final imaging of the light. After the white light 61 passes through the display module 20 for light dispersion, a spectrum composed of light with different wavelengths arranged in the order of wavelength size is obtained, that is, the white light 61 is refracted in the prism, and the light with different wavelengths will be dispersed due to different refractive indices, forming a spectrum arranged in a certain order. It can also be understood that after the white light 61 passes through the prism for dispersion, no matter how the prism rotates, the order of the light of the spectrum formed will not change. The dispersed light that constitutes the spectrum is primary color light, which includes red light 62, orange light 63, yellow light 64, green light 65, blue light 66, cyan light 67 and purple light 68 in sequence. Among them, red light has the smallest refractive index and the largest wavelength, while violet light has the largest refractive index and the smallest wavelength. A pixel hole 232 on the pixel plate 23 passes a light of one wavelength. Light of several different wavelengths passing through the pixel plate 23 forms a display screen. Dispersion refers to the phenomenon that light of different wavelengths propagates at different speeds in a medium, resulting in different refraction angles. After white light passes through a prism, light of different wavelengths is refracted at different angles according to the law of refraction of light, thereby forming a continuous spectrum.

[0060] The parallel white light emitted by the backlight module 60 passes through the light-transmitting area of ​​the driving unit 21 and is incident on the prism of the pixel unit 22. The white light is dispersed after passing through the prism and then emitted through the light-emitting surface 234. The dispersed light of one color passes through the pixel hole 232 corresponding to the prism. The dispersed light rays passing through the several pixel units 22 respectively pass through the several pixel holes 232 of the pixel board 23. The several dispersed light rays present a variety of colors on one side of the light-emitting surface 234 to form a picture (imaging) to be displayed. At this time, the color of the light emitted from the pixel board 23 by the adjacent prisms can be controlled by adjusting the rotation angle of the prism, for example, the colors of adjacent light rays are similar. The color synthesis of several dispersed light rays on one side of the light-emitting surface 234 can increase the range of the color gamut and make the displayed image more colorful; that is to say, after passing through the pixel board 23, several dispersed light rays can directly form an image, or they can synthesize colors to form an image (the size and distance of the pixel hole 232 are small enough, and two light rays of different colors will overlap to produce light rays of other colors under the naked eye, such as parallel red light and blue light appear purple under the condition that the naked eye can see them, and of course, several light rays of different wavelengths can be synthesized at the same time). It should be noted that the purpose of the rotating part controlling the rotation of the prism is to ensure that only one band (color) of light rays after the dispersion passes through the corresponding pixel hole. On the side of the light-emitting surface 234 of the pixel board 23, that is, the display side of the display screen, the human eye cannot see the pixel hole 232 in a natural state, that is, the human eye cannot see the internal structure of the display module 20 on the side of the pixel board 23 facing away from the backlight module 60.

[0061] Among them, the array arrangement of the plurality of pixel units 22 and the corresponding pixel holes 232 enables the display screen 100 to have a wide viewing angle, so that light can be evenly passed through the pixel plate 23 at different angles and imaged and visible on one side of the transparent cover plate 70, thereby realizing a wide viewing angle range of the image that is visible to the human eye. This means that even if viewed from different angles, the brightness and color of the image can remain consistent. This makes the display screen 100 very suitable for scenes that require multiple people to watch, such as large conference rooms, exhibitions, and public places.

[0062] See also Figure 5 , Figure 5 for Figure 4 A schematic diagram of the light path of some prisms in the display module in the initial state is shown.

[0063] The display module 20 has an initial state, which can also be referred to as an initial state of the pixel unit. In the initial state, the first prism surface and the second prism surface of the prism are symmetrical with respect to the symmetry plane OO, wherein the symmetry plane OO passes through the center line of the length direction of the prism (the axis of the rotating shaft of the rotating part), and the symmetry plane OO is parallel to the light-emitting surface 234 and the light-blocking surface of the pixel plate 23, and is perpendicular to the axial direction of the pixel hole 232. When the prism is in the initial state, the first prism surface is 60 degrees to the light-blocking surface 233 of the pixel plate 23, the second prism surface is 60 degrees to the light-blocking surface 233 of the pixel plate 23, and the third prism surface is perpendicular to the symmetry plane OO. The first prism surface is the light incident surface, the first prism surface faces the driving part 21, the second prism surface is the emission surface, the second prism surface faces the pixel plate 23, and the second prism surface corresponds to a pixel hole 232 of the pixel plate 23.

[0064] The prism can rotate counterclockwise or clockwise relative to the symmetry plane OO in the initial state. The counterclockwise or clockwise rotation angle relative to the symmetry plane OO can be any angle in the range of 0-60 degrees. It should be noted that the rotation angle does not include 60 degrees, that is, the total angle at which the prism can rotate freely is less than 120 degrees. Each prism can be rotated at different angles according to actual needs. It should be noted that the initial state of the display module 20 is defined in order to better describe the dynamic changes of the prism during its display process. The initial state can be the state after the display screen is powered off (turned off), or it can be the starting state when it is powered on (powered on); and when the display screen is working, such as displaying a solid color picture, the prism of the display module 20 returns to the initial state.

[0065] Specifically, when the first prism 261, the second prism 271 and the third prism 281 are in the initial state, the first prism surfaces of the first prism 261, the second prism 271 and the third prism 281 are incident surfaces, and the second prism surfaces of the first prism 261, the second prism 271 and the third prism 281 are exit surfaces. The first prism surfaces of the first prism 261, the second prism 271 and the third prism 281 face the driving unit 21, and the second prism surfaces of the first prism 261, the second prism 271 and the third prism 281 face the pixel panel 23, and the second prism surface corresponds to a pixel hole 232 of the pixel panel 23. After the white light 61 is incident on the first prism 261, the second prism 271 and the third prism 281 and refracted, the light emitted from the exit surfaces of the first prism 261, the second prism 271 and the third prism 281 is scattered according to the principle of light dispersion. The light generated by the dispersion of white light is reflected in the form of a spectrum, such as red light 62, orange light 63, yellow light 64, green light 65, blue light 66, cyan light 67 and purple light 68 arranged in sequence. In this embodiment, the green light 65 emitted from the exit surfaces of the first prism 261, the second prism 271 and the third prism 281 passes through the corresponding first pixel hole 2321, the second pixel hole 2322 and the third pixel hole 2323 respectively, and the remaining red light 62, orange light 63, yellow light 64, blue light 66, cyan light 67 and purple light 68 hit the light shielding layer and are blocked on the side of the light blocking surface 233.

[0066] It can be explained that only one wavelength of light emitted from each prism passes through a corresponding pixel hole 232; the colors of light emitted from several prisms are different. The light passing through several pixel holes 232 forms a picture on one side of the transparent cover plate 70 of the display screen 100, while other light that does not pass through the pixel holes 232 is blocked on the light blocking surface 233 of the pixel plate 23.

[0067] See also Figure 6 and Figure 7 , Figure 6 for Figure 5 The schematic diagram shows that some prisms in the display module are rotated counterclockwise at a certain angle. Figure 7 for Figure 6 The diagram shows the light paths of some prisms in the display module at different rotation angles.

[0068] The display module 20 receives the display signal of the picture switching, starts the driving unit 21 and the backlight module 60, and the driving unit 21 drives the prism to rotate to achieve the change of the light passing through the pixel plate 23 to form a display picture.

[0069] The display module 20 is rotated with the initial state as the reference, that is, the first prism 261, the second prism 271 and the third prism 281 are rotated relative to the symmetry plane OO. In this embodiment, taking the counterclockwise rotation as an example, the corresponding rotation angles of the first prism 261, the second prism 271 and the third prism 281 can be the same or different. Exemplarily, the rotation angle of the first prism 261 is 0 degrees, that is, the first prism 261 still maintains the initial state. The second prism 271 rotates counterclockwise at an angle α relative to the symmetry plane OO, and the angle α can be 10 degrees or 20 degrees. The third prism 281 rotates counterclockwise at an angle β relative to the symmetry plane OO, and the angle β can be 30 degrees or 40 degrees.

[0070] In a possible embodiment, the white light 61 emitted by the backlight module 60 passes through the driving unit 21 and enters the pixel unit 22. The white light 61 is incident on the first prism surface 2611 of the first prism 261, refracted in the first prism 261, and then emitted through the second prism surface 2612 of the first prism 261 to form a spectrum. A wavelength of light in the spectrum passes through the first pixel hole 2321 corresponding to the first prism 261 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the green light 65 emitted through the first prism 261 passes through the first pixel hole 2321 of the pixel plate 23. The white light 61 is incident on the first prism surface 2711 of the second prism 271, refracted in the second prism 271, and then emitted through the second prism surface 2712 of the second prism 271 to form a spectrum. A wavelength of light in the spectrum passes through the second pixel hole 2322 corresponding to the second prism 271 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the blue light 66 emitted from the second prism 271 passes through the second pixel hole 2322 of the pixel plate 23 .

[0071] The white light 61 is incident on the first prism surface 2811 of the third prism 281, and after being refracted in the third prism 281, it is emitted through the second prism surface 2812 of the third prism 281 to form a spectrum. Light of one wavelength in the spectrum passes through the third pixel hole 2323 corresponding to the third prism 281 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the cyan light 67 emitted through the third prism 281 passes through the third pixel hole 2323 of the pixel plate 23.

[0072] Light emitted from the pixel units 22 through the pixel board 23 forms a display screen on the light emitting surface 234 of the pixel board 23 and is displayed on one side of the transparent cover 70 of the display screen 100. The screen can be a static picture or a dynamic video.

[0073] See also Figure 8 and Fig. 9 , Figure 8 for Figure 5 The schematic diagram shows that some prisms in the display module are rotated clockwise at a certain angle. Fig. 9 for Figure 8 The diagram shows the light paths of some prisms in the display module at different rotation angles.

[0074] The principle of clockwise rotation is similar to that of counterclockwise rotation. The display module 20 is rotated based on the initial state, that is, the first prism 261, the second prism 271 and the third prism 281 rotate relative to the symmetry plane OO. In this embodiment, taking clockwise rotation as an example, the corresponding rotation angles of the first prism 261, the second prism 271 and the third prism 281 can be the same or different. Exemplarily, the rotation angle of the first prism 261 is 0 degrees, that is, the first prism 261 still maintains the initial state. The second prism 271 rotates γ angle clockwise relative to the symmetry plane OO, and the γ angle can be 10 degrees or 20 degrees. The third prism 281 rotates δ angle clockwise relative to the symmetry plane OO, and the δ angle can be 30 degrees or 40 degrees.

[0075] In a possible embodiment, the white light 61 emitted from the backlight module 60 passes through the driving unit 21 and enters the pixel unit 22. The white light 61 enters the first prism surface 2611 of the first prism 261, and after being refracted in the first prism 261, it is emitted through the second prism surface 2612 of the first prism 261 to form a spectrum. A wavelength of light in the spectrum passes through the first pixel hole 2321 corresponding to the first prism 261 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the green light 65 emitted through the first prism 261 passes through the first pixel hole 2321 of the pixel plate 23.

[0076] The white light 61 is incident on the first prism surface 2711 of the second prism 271, and after being refracted in the second prism 271, it is emitted through the second prism surface 2712 of the second prism 271 to form a spectrum. Light of one wavelength in the spectrum passes through the second pixel hole 2322 corresponding to the second prism 271 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the yellow light 64 emitted through the second prism 271 passes through the second pixel hole 2322 of the pixel plate 23.

[0077] The white light 61 is incident on the first prism surface 2811 of the third prism 281, and after being refracted in the third prism 281, it is emitted through the second prism surface 2812 of the third prism 281 to form a spectrum. Exemplarily, a light of one wavelength in the spectrum passes through the third pixel hole 2323 corresponding to the third prism 281 to one side of the transparent cover plate 70 of the display screen 100. Exemplarily, the orange light 63 emitted through the third prism 281 passes through the third pixel hole 2323 of the pixel plate 23.

[0078] In a possible embodiment, according to actual needs, the first prism 261, the second prism 271 and the third prism 281 can be rotated clockwise or counterclockwise with respect to the initial state symmetry plane OO, and the angles can be different or the same. Specifically, the red light 62, the orange light 63, the yellow light 64, the green light 65, the blue light 66, the cyan light 67 and the purple light 68 obtained after dispersion from the pixel unit 22 correspond to a specific counterclockwise rotation angle range or a clockwise rotation angle range, that is, within a specific counterclockwise rotation angle range or a clockwise rotation angle range, the light passing through the pixel hole 232 does not change, and this is not limited in the present embodiment.

[0079] The display module 20 of this embodiment uses a prism to achieve the dispersion of light. The obtained light of several different bands is filtered by a pixel plate 23 provided with several pixel holes 232. Each pixel hole 232 can only transmit light of one band. Several pixel holes 232 can transmit light of several bands (colors) to form a display screen. Of course, the light of several pixel holes can also be the same color, that is, a pure color screen is displayed. Compared with the liquid crystal display of the prior art, the liquid crystal layer is thicker, the liquid crystal leaks, and the liquid crystal manufacturing is complex. The display module 20 of this application does not have the disadvantages of simple liquid crystal layer structure, small weight and volume, and no leakage. Compared with the organic light emitting diode display, the pixel unit 22 of the display module 20 of this application does not have the risk of fast aging and screen burn-in. Moreover, the pixel unit 22 of the display module 20 of this application is arranged in an array and driven by TFT, and the dynamic response speed is relatively fast.

[0080] Furthermore, the display screen 100 of the present application uses natural light (white light) as backlight, and the light dispersed after passing through the prism is light of several different wavelengths. Light of different wavelengths can be directly imaged after passing through the pixel plate 23, rather than being synthesized with other colors through the prism and then imaged. The pixel hole 232 is used to filter the dispersed light, and light of different wavelengths can be synthesized with other colors after passing through the pixel plate 23, and it is not just the synthesis of red, green and blue colors, which increases the range of the color gamut and makes the color of the displayed image richer.

[0081] The above are only some embodiments of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A display module, used for a display screen, the display screen comprising a backlight module, the backlight module providing parallel white light for the display module, characterized in that: The display module comprises a driving part, a pixel board, a plurality of pixel units and a bracket. Along the thickness direction of the display module, the driving part and the pixel board are stacked, the bracket is connected and supported between the driving part and the pixel board, and the plurality of pixel units are located between the driving part and the pixel board. The pixel plate comprises a light-blocking surface, a light-emitting surface and a plurality of pixel holes. Along the thickness direction of the pixel plate, the light-blocking surface and the light-emitting surface are arranged in back-to-back relation and the light-blocking surface faces the pixel unit. Each of the pixel holes penetrates the light-blocking surface and the light-emitting surface, and the plurality of pixel holes are arranged in an array. Each of the pixel units comprises a prism and a rotating part, the rotating part is electrically connected to the driving part, the bracket comprises a plurality of sub-rods arranged in parallel, opposite ends of the sub-rods are respectively connected to the driving part and the light-blocking surface, and the sub-rods are completely staggered with the pixel holes; The rotating part includes a rotating shaft, the prism is connected to the rotating shaft, the axis of the rotating shaft coincides with the center line of the length direction of the prism, the rotating part is fixed on the sub-rod, the center line of the prism is perpendicular to the sub-rod; the prisms of the plurality of pixel units correspond to the plurality of pixel holes one by one; Along a thickness direction perpendicular to the display module, the white light provided by each backlight module passes through the driving unit and is incident on the prism. The rotating unit drives the prism to rotate, so that among the light rays of several different bands after dispersion emitted by the prism, the light rays of one band pass through the pixel hole corresponding to the prism, and the dispersed light rays passing through several pixel holes are imaged on one side of the light emitting surface of the pixel plate.

2. The display module according to claim 1, characterized in that: The driving unit can control the rotating parts of the plurality of pixel units to rotate respectively.

3. The display module according to claim 1, characterized in that: The distance between every two adjacent pixel holes is less than or equal to 0.2 mm.

4. The display module according to claim 1, characterized in that: The prism includes an exit surface and an incident surface, the exit surface and the incident surface are connected, the angle between the exit surface and the incident surface is 60 degrees, the exit surface and the incident surface are symmetrical with respect to a symmetry plane passing through a center line in a length direction of the prism, and the angle at which the exit surface and the incident surface are rotated with respect to the symmetry plane is greater than or equal to 0 degrees and less than 60 degrees; wherein the symmetry plane is parallel to the light-blocking surface and the axial direction of the pixel hole is perpendicular to the symmetry plane.

5. The display module according to claim 4, characterized in that: The cross section of the prism is an equilateral triangle.

6. The display module according to any one of claims 1 to 5, characterized in that: The rotating part includes a micro-nano motor, and the volume of the micro-nano motor is less than or equal to 0.1 mm.

7. The display module according to any one of claims 1 to 5, characterized in that: The driving part is driven by a semiconductor thin film transistor, which includes a conductive layer, and a plurality of wirings of the conductive layer are connected one-to-one with a plurality of the rotating parts and are conductive.

8. A display screen, characterized in that: It comprises a backlight module and the display module as claimed in any one of claims 1 to 7, wherein the backlight module is located on a side of the driving unit facing away from the pixel panel, and the backlight module provides white light that passes through the driving unit and is incident on the prism.

9. The display screen according to claim 8, characterized in that: The white light is natural light or composite white light.

10. An electronic device, characterized in that: The electronic device comprises a main body and a display screen as claimed in claim 8 or 9, wherein the display screen is mounted on one side of the main body, and the light emitting surface of the pixel panel faces away from the main body.

Images