Display module, display method, and display device

Abstract

The application discloses a display module, a display method and a display device. The display module comprises a pixel layer, an electro-deformation layer and a control electrode. The pixel layer comprises a display sub-pixel. The electro-deformation layer is arranged above the display sub-pixel. The electro-deformation layer comprises a plurality of electro-deformation portions. The display sub-pixel is provided with the electro-deformation portions. The control electrode is arranged corresponding to the electro-deformation layer. The control electrode has a first electric field and a second electric field. The first electric field acts on the electro-deformation portions to form a first guide structure. The first guide structure deflects light passing through the display sub-pixel to a first viewing angle. The second electric field acts on the electro-deformation portions to form a second guide structure. The second guide structure deflects light passing through the display sub-pixel to a second viewing angle. The control electrode switches between the first electric field and the second electric field according to a preset time. The technical scheme of the application can form a display picture in two viewing angle directions, and meanwhile, the setting of the display screen is reduced, and the occupied position space is saved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a display module, a display method and a display device. BACKGROUND

[0002] Currently, one display screen can only see one picture. If two people standing at different viewing angles on both sides of the display screen can see different display pictures, two display screens need to be set, and each display screen independently provides a display picture to the corresponding user. However, using two display screens not only consumes resources, but also occupies a large space. SUMMARY

[0003] The purpose of the present application is to provide a display module, a display method and a display device, which can form display pictures in two viewing angle directions, while reducing the setting of display screens and saving the occupied space.

[0004] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0005] According to one aspect of the embodiments of the present application, the present application provides a display module, which comprises a pixel layer, the pixel layer comprises a plurality of display sub-pixels arranged in sequence, and the display module further comprises:

[0006] an electro-deformation layer, the electro-deformation layer is arranged above the display sub-pixels, the electro-deformation layer comprises a plurality of electro-deformation parts, and at least one electro-deformation part is arranged above each display sub-pixel;

[0007] a control electrode, the control electrode is arranged corresponding to the electro-deformation layer, the control electrode has a first electric field and a second electric field, the first electric field acts on the electro-deformation part, the electro-deformation part forms a first guide structure, and the first guide structure deflects the light passing through the display sub-pixel to a first viewing angle;

[0008] the second electric field acts on the electro-deformation part, the electro-deformation part forms a second guide structure, the second guide structure deflects the light passing through the display sub-pixel to a second viewing angle, and the first viewing angle and the second viewing angle are respectively located on both sides of the center line of the display module;

[0009] wherein the control electrode switches between the first electric field and the second electric field according to a preset time, the preset time is less than or equal to one-half frame, so that the first viewing angle and the second viewing angle can both obtain display pictures.

[0010] In one aspect, the control electrode includes a transparent electrode layer and a transparent electrode group, the transparent electrode layer is arranged between the electro-deformation layer and the pixel layer;

[0011] The transparent electrode group is arranged on the side of the electro-deformation layer away from the pixel layer, the transparent electrode group is provided with a plurality of transparent electrode groups, one transparent electrode group corresponds to one electro-deformation part, the transparent electrode group includes a first electrode and a second electrode, and the first electrode and the second electrode are arranged at intervals;

[0012] The transparent electrode layer and the first electrode are powered to form the first electric field;

[0013] The transparent electrode layer and the second electrode are powered to form the second electric field.

[0014] In one aspect, the first guide structure includes a first refractive surface, the first electric field acts on the electro-deformation part, the electro-deformation part forms the first refractive surface towards the first viewing angle, and the first refractive surface deflects the light passing through the display sub-pixel to the first viewing angle;

[0015] The second guide structure includes a second refractive surface, the second electric field acts on the electro-deformation part, the electro-deformation part forms the second refractive surface towards the second viewing angle, and the second refractive surface deflects the light passing through the display sub-pixel to the second viewing angle.

[0016] In one aspect, the transparent electrode group further includes a third electrode, the third electrode is arranged at intervals with the first electrode and the second electrode respectively, a third electric field is formed between the third electrode and the transparent electrode layer, the third electric field acts on the electro-deformation layer, and a third refractive surface is formed towards a third viewing angle;

[0017] The first viewing angle and the second viewing angle are respectively located on the left and right sides of the center line of the display module, and the third viewing angle is located on the upper side or the lower side of the center line of the display module.

[0018] In one aspect, the coverage area of the first electrode is S1, the coverage area of the second electrode is S2, and the light emitting surface of the display sub-pixel is S, and the following conditions are met: 15%≤S1 / S≤25%, 15%≤S2 / A≤25%.

[0019] In one aspect, the interval distance between the first electrode and the second electrode is L, and the width of the display sub-pixel is W, and the following conditions are met: 20%≤L / W≤60%.

[0020] In one aspect, the display module further includes a transparent spacing part, and the transparent spacing part is arranged between two adjacent electro-deformation parts.

[0021] Further, in order to solve the above problems, the present application also provides a display method, which is applied to the display module as described above, and the display method comprises:

[0022] generating a switching instruction;

[0023] based on the switching instruction, energizing the control electrode and controlling the control electrode to switch between the first electric field and the second electric field according to the preset time, wherein the preset time is less than or equal to one-half frame.

[0024] In one aspect, the display method further comprises:

[0025] generating an adjusting instruction, and adjusting the power supply to the control electrode based on the adjusting instruction to adjust the positions of the first viewing angle and / or the second viewing angle.

[0026] Further, in order to solve the above problems, the present application also provides a display device, which comprises an upper substrate, a lower substrate and the display module as described above, the upper substrate and the lower substrate are opposite, and the display module is arranged between the upper substrate and the lower substrate.

[0027] In the present application, after the control electrode is switched to the first electric field, the first electric field acts on the electro-deformation part, so that the electro-deformation part forms a first guide structure, and the light passing through the display sub-pixel is guided and deflected to the first viewing angle through the first guide structure, and a display picture is formed in the first viewing angle direction. After the control electrode is switched to the second electric field according to the preset time, the second electric field acts on the electro-deformation part, so that the electro-deformation part forms a second guide structure, and the light passing through the display sub-pixel is guided and deflected to the second viewing angle through the second guide structure, and a display picture is formed in the second viewing angle direction. Therefore, the control electrode is switched between the first electric field and the second electric field according to the preset time, and the preset time is less than or equal to one-half frame. It can be known that the frequency of switching between the first electric field and the second electric field is high, and the user's eyes cannot identify the picture interval, and the display picture is simultaneously presented in the first viewing angle and the second viewing angle. Then, a display module can present a display picture in two viewing angle directions, which reduces the setting of the display screen and saves the position space.

[0028] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. It is to be understood that the drawings are only illustrations of some embodiments of the application and that, to one of ordinary skill in the art, other embodiments can be clearly inferred from the drawings without paying creative labor.

[0030] Figure 1 The structure schematic diagram of the display module in the first embodiment of the application is shown.

[0031] Figure 2 The structure schematic diagram of the A part of the display module in the first embodiment of the application is shown. Figure 1

[0032] The structure schematic diagram of the light transmission in the initial state of the electro-deformation part in the first embodiment of the application is shown. Figure 3 Figure 1 The structure schematic diagram of the electro-deformation part deformed into the first guide structure in the first embodiment of the application is shown.

[0033] Figure 4 The structure schematic diagram of the B part of the display module in the first embodiment of the application is shown.

[0034] Figure 5 Figure 4 The structure schematic diagram of the light incident angle larger when the light passes through the first guide structure and shoots to the first visual angle in the first embodiment of the application is shown.

[0035] Figure 6 The structure schematic diagram of the light passing through one of the first guide structures and shooting to the first visual angle in the first embodiment of the application is shown. Figure 5

[0036] The structure schematic diagram of the light incident angle smaller when the light passes through the first guide structure and shoots to the first visual angle in the first embodiment of the application is shown. Figure 7 Figure 6 The structure schematic diagram of the light passing through one of the first guide structures and shooting to the first visual angle in the first embodiment of the application is shown.

[0037] Figure 8 Figure 5 The structure schematic diagram of the electro-deformation part deformed into the second guide structure in the first embodiment of the application is shown.

[0038] Figure 9 The structure schematic diagram of the electro-deformation part deformed into the second guide structure in the first embodiment of the application is shown. Figure 8

[0039] The structure schematic diagram of the electro-deformation part deformed into the second guide structure in the first embodiment of the application is shown. Figure 10

[0040] The structure schematic diagram of the electro-deformation part deformed into the second guide structure in the first embodiment of the application is shown. Figure 11 Figure 10 ​​​​​C part of the display module is enlarged.

[0041] Figure 12 The application is schematically shown in Figure 10 The structure schematic diagram is shown in the application

[0042] Figure 13 The application is schematically shown in Figure 12 The structure schematic diagram is shown in the application

[0043] Figure 14 The application is schematically shown in Figure 10 The structure schematic diagram is shown in the application

[0044] Figure 15 The application is schematically shown in Figure 14 The structure schematic diagram is shown in the application

[0045] Figure 16 The application is schematically shown in

[0046] Figure 17 The application is schematically shown in

[0047] Figure 18 The application is schematically shown in

[0048] Figure 19 The application is schematically shown in

[0049] Figure 20 The application is schematically shown in Figure 19 The application is schematically shown in

[0050] Figure 21 The application is schematically shown in

[0051] The following is the explanation of the reference signs:

[0052] 10, pixel layer; 20, electro-deformation layer; 30, control electrode; 41, first view angle; 42, second view angle; 50, transparent interval part; 61, upper substrate; 62, lower substrate; 63, support substrate; 70, light-emitting layer;

[0053] 110, display sub-pixel; 210, electro-deformation part; 220, first guide structure; 221, first refractive surface; 230, second guide structure; 231, second refractive surface; 310, transparent electrode layer; 320, transparent electrode group; 321, first electrode; 322, second electrode; 323, third electrode; 324, fourth electrode. DETAILED DESCRIPTION

[0054] Example implementations are now described with reference to the following drawings. The example implementations, can, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example implementations to those skilled in the art.

[0055] Embodiment one

[0056] Reference Figures 1 to 3 As shown in the drawings, the present application provides a display module, the display module includes a pixel layer 10, the pixel layer 10 includes a plurality of display sub-pixels 110 arranged in sequence, the display sub-pixels 110 are arranged in matrix form in the same plane, and a black matrix layer is arranged between adjacent display sub-pixels 110. The display sub-pixel 110 can include a light-emitting layer 70 for emitting light alone, for example, the display sub-pixel 110 includes an OLED (Organic Light-Emitting Diode), at this time, the display sub-pixel 110 can be a blue light-emitting diode, a green light-emitting diode, or a red light-emitting diode, and usually three blue light-emitting diodes, green light-emitting diodes, and red light-emitting diodes form a display unit. In addition, the display sub-pixel 110 can also rely on a backlight source to emit light, at this time, the display sub-pixel 110 includes a light filter, the light filter can be blue, green, or red, and usually blue, green, and red form a display unit, and the light of the backlight source passes through the light filter, thereby presenting different colors. Furthermore, the display sub-pixel 110 can also include a Mini LED (Mini Light-Emitting Diode) or a Micro LED (Micro Light-Emitting Diode).

[0057] The display module further comprises an electro-deformation layer 20 and a control electrode 30. The control electrode 30 generates an electric field that can act on the electro-deformation layer 20, causing the electro-deformation layer 20 to deform. The electro-deformation layer 20 can be understood as a kind of electrostrictive material. The electro-deformation layer 20 can be an organic electro-deformation material or an inorganic electro-deformation material. The organic electro-deformation material refers to an electro-deformation material composed of organic compounds, such as polyethylene glycol, polyethylene glycol, etc. Such materials have the characteristics of softness and strong plasticity. The inorganic electro-deformation material refers to an electro-deformation material composed of inorganic compounds, such as lead titanium barium titanate, sodium potassium silicate, etc. Such materials have high mechanical stiffness and strength.

[0058] The deformation effect of the electro-deformation material is caused by the rearrangement of the internal electric dipole moment under the action of the applied electric field. When the applied electric field acts on the electro-deformation material, the positive and negative charges inside the material will shift, resulting in the generation of electric dipole moment. These electric dipole moments will interact with the applied electric field, causing the deformation of the material.

[0059] The electro-deformation material also has many unique properties, for example, it has a high response speed, the electro-deformation material can complete deformation within milliseconds, and has the characteristics of fast response. Large deformation effect, the deformation effect of the electro-deformation material can reach hundreds of microns or even larger, and has a large deformation range. High energy conversion efficiency, the electro-deformation material can convert electrical energy into mechanical energy, and has high energy conversion efficiency. Good durability, the electro-deformation material has good durability and can withstand long-term electric field action without significant decay. Strong controllability, the deformation effect of the electro-deformation material can be controlled by adjusting the strength of the applied electric field, and has strong controllability.

[0060] The electro-deformation layer 20 is arranged above the display sub-pixel 110, which can be understood as the electro-deformation layer 20 being arranged in the light-emitting direction of the display sub-pixel 110. The electro-deformation layer 20 comprises a plurality of electro-deformation portions 210, and at least one electro-deformation portion 210 is arranged above each display sub-pixel 110; by the deformation of the electro-deformation portion 210, the propagation direction of the light passing through the display sub-pixel 110 is changed. The plurality of electro-deformation portions 210 can be connected to each other or isolated from each other.

[0061] Referring to Figures 4 to 6 , and Figures 10 to 12As shown, the control electrode 30 is arranged corresponding to the electro-deformation layer 20, the control electrode 30 has a first electric field and a second electric field, the first electric field acts on the electro-deformation part 210, the electro-deformation part 210 forms a first guide structure 220, the first guide structure 220 deflects the light passing through the display sub-pixel 110 to the first viewing angle 41; the light passing through the display sub-pixel 110 is deflected according to the refraction principle after encountering the first guide structure 220, and is shot to the first viewing angle 41, a user at the first viewing angle 41 can observe a display picture. The second electric field acts on the electro-deformation part 210, the electro-deformation part 210 forms a second guide structure 230, the second guide structure 230 deflects the light passing through the display sub-pixel 110 to the second viewing angle 42, the first viewing angle 41 and the second viewing angle 42 are respectively located on both sides of the center line of the display module; after passing through the second guide structure 230, the light is also deflected according to the refraction principle, and is shot to the second viewing angle 42, a user at the second viewing angle 42 can watch another display picture. It should be noted that the electro-deformation part 210 is a transparent material, and the refractive index is usually greater than 1. The control electrode 30 is also a transparent material, so as to ensure the light transmittance and reduce the absorption of the light. It should be noted that in the absence of an electric field, the upper surface of the electro-deformation part 210 is flat, and a plurality of electro-deformation parts 210 can form an electro-deformation layer 20 with a flat upper surface.

[0062] The control electrode 30 switches between the first electric field and the second electric field according to a preset time, the preset time is less than or equal to one-half frame, so that the first viewing angle 41 and the second viewing angle 42 can obtain the display picture. If 12 frames are refreshed per second, the preset time is less than or equal to 1 / 24 second; if 24 frames are refreshed per second, the preset time is less than or equal to 1 / 48 second; if 60 frames are refreshed per second, the preset time is less than or equal to 1 / 120 second, and so on. The refresh frame of the display picture cannot be recognized by the naked eye, so that the first viewing angle 41 and the second viewing angle 42 can form the display picture at the same time. The display pictures of the first viewing angle 41 and the second viewing angle 42 can be the same or different. The dotted line in the figure is a schematic diagram of the propagation path of the light.

[0063] In this embodiment, after the control electrode 30 switches to the first electric field, the first electric field acts on the electro-deformation part 210, so that the electro-deformation part 210 forms the first guide structure 220, and the light passing through the display sub-pixel 110 is guided and deflected to the first viewing angle 41 through the first guide structure 220, and the display picture is formed in the direction of the first viewing angle 41. After the control electrode 30 switches to the second electric field according to the preset time, the second electric field acts on the electro-deformation part 210, so that the electro-deformation part 210 forms the second guide structure 230, and the light passing through the display sub-pixel 110 is guided and deflected to the second viewing angle 42 through the second guide structure 230, and the display picture is formed in the direction of the second viewing angle 42. Therefore, the control electrode 30 switches between the first electric field and the second electric field according to the preset time, and the preset time is less than or equal to one-half frame. It can be known that the switching frequency between the first electric field and the second electric field is high, and the user's eyes cannot identify the picture switching interval, and the display picture is simultaneously presented in the first viewing angle 41 and the second viewing angle 42. Then, the display module can present the display picture in two viewing angle directions, reduces the setting of the display screen, and saves the position space.

[0064] Referring again to Figure 3 It needs to be further explained that, in the case that the control electrode 30 is powered off, the electro-deformation part 210 returns to the original state, and the light directly transmits through the electro-deformation part 210 without deflection. At this time, another display picture can also be formed in the front of the display module.

[0065] In order to ensure that the electro-deformation part 210 can be effectively driven to deform, the control electrode 30 includes a transparent electrode layer 310 and a transparent electrode group 320, and the transparent electrode layer 310 is arranged between the electro-deformation layer 20 and the pixel layer 10. The transparent electrode layer 310 can be pasted on the pixel layer 10, and the transparent electrode layer 310 supports the electro-deformation layer 20.

[0066] The transparent electrode group 320 is arranged on the side of the electro-deformation layer 20 away from the pixel layer 10. The transparent electrode group 320 is provided with a plurality of transparent electrode groups 320, one transparent electrode group 320 corresponding to one electro-deformation part 210. The transparent electrode group 320 includes a first electrode 321 and a second electrode 322. The first electrode 321 and the second electrode 322 are arranged in a spaced manner. The interval between the first electrode 321 and the second electrode 322 can avoid short circuit caused by contact between the first electrode 321 and the second electrode 322. The transparent electrode layer 310 and the first electrode 321 are powered to form a first electric field. The transparent electrode layer 310 and the second electrode 322 are powered to form a second electric field. It can be understood that the electric field lines of the first electric field and the second electric field are vertically extended. Generally, when power supply is performed, the voltage on the transparent electrode layer 310 is low, and the voltage on the first electrode 321 and the second electrode 322 is high, thereby forming an electric field with a direction from top to bottom. It can be further understood that the first electrode 321 and the second electrode 322 are respectively located on opposite sides, and the first electric field and the second electric field can respectively act on different positions on the two sides of the electro-deformation part 210. For example, the first electric field acts on the left end of the electro-deformation part 210, and the second electric field acts on the right end of the electro-deformation part 210. In this way, two different guide structures, i.e., the first guide structure 220 and the second guide structure 230, can be formed.

[0067] Generally, the transparent electrode layer 310 and the transparent electrode group 320 are both transparent conductive materials, such as ITO (Indium tin oxide).

[0068] Referring to Figures 5 to 7 As shown, under the action of the first electric field, the electro-deformation part 210 deforms along the direction of the electric field lines of the first electric field. The left end of the electro-deformation part 210 is compressed, and the right end is extruded and raised. The electro-deformation part 210 forms a first guide structure 220 similar to a prism. It can be understood that the first guide structure 220 is the electro-deformation part 210 after deformation under the action of the first electric field. The first guide structure 220 includes a first refractive surface 221. The first electric field acts on the electro-deformation part 210, and the electro-deformation part 210 forms the first refractive surface 221 facing the first viewing angle 41. The first refractive surface 221 deflects the light passing through the display sub-pixel 110 towards the first viewing angle 41.

[0069] Specifically, the light enters from the lower end of the first guide structure 220. The light is incident on the first refractive surface 221. The incident angle θ is greater than the total reflection angle. The light is emitted from the first guide structure 220 to the air, and the light is reflected by the first refractive surface 221 and emitted from the right end of the first guide structure 220, i.e., towards the first viewing angle 41.

[0070] Referring to Figures 11 to 13As shown, the second guiding structure 230 includes a second refractive surface 231, the second electric field acts on the electro-deformation part 210, the electro-deformation part 210 forms the second refractive surface 231 towards the second viewing angle 42, the second refractive surface 231 deflects the light ray passing through the display sub-pixel 110 to the second viewing angle 42. Similarly, the light ray enters from the lower end of the second guiding structure 230, the light ray will be incident on the second refractive surface 231, the incident angle θ is greater than the total reflection angle, the light ray is emitted from the second guiding structure 230 to the air, and the light ray will be reflected by the second refractive surface 231 and emitted from the left end of the second guiding structure 230, that is, to the second viewing angle 42. At this time, the first viewing angle 41 is located at the right end, and the second viewing angle 42 is located at the left end.

[0071] It should be further pointed out that the technical solution of the present application can also adjust the projection viewing angle of the display picture by adjusting the size of the incident angle.

[0072] Referring to Figure 8 and Figure 9 As shown, under the action of the first electric field, the incident angle of the light ray incident on the first refractive surface 221 is less than the total reflection angle, the light ray will not be totally reflected, but will be transmitted through the first refractive surface 221 and refracted, and the light ray will be transmitted through the first refractive surface 221 and emitted to the first viewing angle 41.

[0073] Referring to Figure 14 and Figure 15 As shown, similarly, under the action of the second electric field, the incident angle of the light ray incident on the second refractive surface 231 is less than the total reflection angle, the light ray will not be totally reflected, but will be transmitted through the second refractive surface 231, and the light ray will be emitted to the second viewing angle 42. It should be pointed out that at this time, the first viewing angle 41 is located at the left end, and the second viewing angle 42 is located at the right end. As can be seen, in the case that the electro-deformation part 210 is deformed to form a prism, the light ray exit angle switching can also be realized by adjusting the size of the incident angle θ. For adjusting the incident angle θ, the inclination angle of the first refractive surface 221 or the second refractive surface 231 can be adjusted.

[0074] For adjusting the inclination angle of the first refractive surface 221, the electric field strength of the first electric field can be adjusted, that is, the voltage between the first electrode 321 and the transparent electrode layer 310 is adjusted, the voltage difference between the two is increased, the electric field strength is increased, the inclination angle of the first refractive surface 221 is increased, and the incident angle of the light ray incident on the first refractive surface 221 is also increased, the light ray is totally reflected on the first refractive surface 221 and emitted to the right direction. The voltage difference between the first electrode 321 and the transparent electrode layer 310 is reduced, the electric field strength is reduced, the inclination angle of the first refractive surface 221 is reduced, and the incident angle of the light ray incident on the first refractive surface 221 is also reduced, the light ray is refracted on the first refractive surface 221 and emitted to the left direction.

[0075] Likewise, for adjusting the tilt angle of the second refractive surface 231 can be adjusting the electric field intensity of the second electric field, i.e. adjusting the voltage between the second electrode 322 and the transparent electrode layer 310, increasing the voltage difference between the two, increasing the electric field intensity, the tilt angle of the second refractive surface 231 increases, and the incident angle of the light incident on the second refractive surface 231 also increases, the light is totally reflected at the second refractive surface 231 and shoots in the left direction. Reducing the voltage difference between the second electrode 322 and the transparent electrode layer 310 reduces the electric field intensity, the tilt angle of the second refractive surface 231 decreases, and the incident angle of the light incident on the second refractive surface 231 also decreases, the light is refracted at the second refractive surface 231 and shoots in the right direction.

[0076] In addition, referring to Figure 17 As shown in the figure, the transparent electrode group 320 in the present application also includes a third electrode 323, which is arranged separately from the first electrode 321 and the second electrode 322, and a third electric field is formed between the third electrode 323 and the transparent electrode layer 310, which acts on the electro-deformation layer 20 to form a third refractive surface towards a third viewing angle; the light enters from the lower end of the electro-deformation layer 20, and the light will be reflected on the third refractive surface and shoot towards the third viewing angle.

[0077] The transparent electrode group 320 also includes a fourth electrode 324, which is arranged separately from the first electrode 321 and the second electrode 322, and the third electrode 323, and a fourth electric field is formed between the fourth electrode 324 and the transparent electrode layer 310, which acts on the electro-deformation layer 20 to form a fourth refractive surface towards a fourth viewing angle; the light enters from the lower end of the electro-deformation layer 20, and the light will be reflected on the fourth refractive surface and shoot towards the fourth viewing angle.

[0078] The first viewing angle 41 and the second viewing angle 42 are respectively located on the left and right sides of the center line of the display module, and the third viewing angle and the fourth viewing angle are respectively located on the upper side or the lower side of the center line of the display module.

[0079] It can be further understood that the projection viewing angle formed by the present application is not limited to four, but can be five, six, etc. By increasing the corresponding electrode, the light can be projected to the corresponding viewing angle.

[0080] Again referring to Figure 17As shown, in order to ensure that the picture display of multiple viewing angles is better completed, the coverage area of the first electrode 321 is S1, the coverage area of the second electrode 322 is S2, and the light emitting surface of the display sub-pixel 110 is S, and then 15%≤S1 / S≤25% and 15%≤S2 / A≤25% are met. In this way, the coverage area of the first electrode 321 is S1 and the coverage area of the second electrode 322 is S2, both of which are relatively narrow, and the effect on the electro-deformation part 210 is more concentrated, which promotes the electro-deformation part 210 to better deform and makes the deformation effect more prominent, and the effect of deflecting light is also improved, thereby better completing the picture display of multiple viewing angles. The ratio of S1 / S can be 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, or 25%. Similarly, the ratio of S2 / S can also be 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, or 25%. Of course, within a certain error range, the ratio can fluctuate around 3%.

[0081] In addition, the coverage area S1 of the first electrode 321 and the coverage area S2 of the second electrode 322 cover a small area, which can also reduce the absorption of direct light and improve the light transmittance.

[0082] Referring to Figure 2 and Figure 16 As shown, in the present application, the first electrode 321 or the second electrode 322 forms a changing electric field in the back-and-forth switching process, and the changing electric field is easy to affect other electrodes nearby. Therefore, the spacing distance between the first electrode 321 and the second electrode 322 is L, and the width of the display sub-pixel 110 is W, and then 20%≤L / W≤60% is met. As can be seen, when the spacing distance L between the first electrode 321 and the second electrode 322 is narrow, it occupies 20% of the width W of the display sub-pixel 110. When the spacing distance L between the first electrode 321 and the second electrode 322 is wide, it occupies 60% of the width W of the display sub-pixel 110. Within this width ratio range, there is basically no influence between each other, avoiding the accidental formation of the second electric field when switching to the first electric field, or the accidental appearance of the first electric field when switching to the second electric field. The width of the display sub-pixel 110 is the distance from one side to the other side of the display sub-pixel 110 in the direction from the first electrode 321 to the second electrode 322. The ratio of L / W can be 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, or 60%, etc. The error of the ratio of L / W is generally around 5%.

[0083] Referring to Figure 18As shown, in the process of deforming the electro-deformation part 210, the adjacent electro-deformation parts 210 are prone to interfere with each other. In order to reduce the interference during deformation, the display module further comprises a transparent interval part 50, which is arranged between the two adjacent electro-deformation parts 210. Through the arrangement of the transparent interval part 50, the smooth transmission of light is ensured, and the adjacent electro-deformation parts 210 are separated, thereby reducing the mutual interference generated during the deformation of the electro-deformation part 210. The transparent interval part 50 can surround the electro-deformation part 210 in the middle.

[0084] Embodiment Two

[0085] Referring to Figure 19 As shown, the present application also provides a display method, which is applied to the display module as above, and the display method comprises the following steps:

[0086] In step S10, a switching instruction is generated. The switching instruction can be generated by user input, such as through a key. Alternatively, the switching instruction can be generated by the display module automatically recognizing the presence of a user in the direction of the first viewing angle 41 and the second viewing angle 42. Through the switching instruction, the first electric field and the second electric field are switched.

[0087] In step S20, based on the switching instruction, the control electrode 30 is powered on, and the control electrode 30 is switched between the first electric field and the second electric field according to a preset time, wherein the preset time is less than or equal to one-half frame. The preset time less than or equal to one-half frame can ensure that there is no flicker when the user watches, and the user's eyes cannot identify the corresponding picture switching frequency.

[0088] Referring to Figure 20 As shown, the display method further comprises the following steps:

[0089] In step S30, an adjustment instruction is generated, and the power supply to the control electrode 30 is adjusted based on the adjustment instruction to adjust the position of the first viewing angle 41 and / or the second viewing angle 42. The size of the electro-deformation effect is proportional to the intensity of the electric field. The greater the electric field intensity, the more obvious the electro-deformation effect, and the viewing angle position can be more biased. The smaller the electric field intensity, the weaker the electro-deformation effect, and the viewing angle position is closer to the middle area. Therefore, the user can input the adjustment instruction to adapt to the viewing of users in different positions through the adjustment instruction, thereby ensuring the viewing effect.

[0090] Embodiment Three

[0091] Referring to Figure 21As shown, the application also provides a display device, the display device comprising an upper substrate 61, a lower substrate 62 and the display module as above, the upper substrate 61 and the lower substrate 62 being opposite, and the display module being arranged between the upper substrate 61 and the lower substrate 62. The upper substrate 61 and the lower substrate 62 are used to protect the display module. The display device can further comprise a light emitting layer 70 and a support substrate 63, the light emitting layer 70 being arranged between the lower substrate 62 and the pixel layer 10, and the light emitting layer 70 generating light rays directed to the pixel layer 10. The support substrate 63 is arranged between the pixel layer 10 and the transparent electrode layer 310, and is used to support the intermediate structure.

[0092] The specific embodiments and advantages of the display device are described above with reference to the display module, and will not be repeated here.

[0093] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the application cover any and all variations of the application that come within the scope of the general concept of the application and that the claims be interpreted not to be limited to the specific embodiments described above but to include all variations of the application that are consistent with the principles of the application and fall within the scope of the appended claims.

[0094] It is to be understood that the application is not limited to the precise details of construction and the arrangement of components described above and illustrated in the drawings and that various modifications and changes can be made without departing from the scope of the application. The scope of the application should only be limited by the appended claims.

Claims

1. A display module comprising a pixel layer, the pixel layer comprising a plurality of sequentially arranged display sub-pixels, characterized in that, The display module further comprises: An electro-deformation layer, which is arranged above the display sub-pixels, and comprises a plurality of electro-deformation portions, at least one of which is arranged above each display sub-pixel; A control electrode, which is arranged corresponding to the electro-deformation layer, has a first electric field and a second electric field, and is used to act on the electro-deformation portions to form a first guide structure for deflecting light passing through the display sub-pixels to a first viewing angle; The second electric field is used to act on the electro-deformation portions to form a second guide structure for deflecting light passing through the display sub-pixels to a second viewing angle, and the first and second viewing angles are located on the two sides of the center line of the display module, respectively; The control electrode is switched between the first and second electric fields according to a preset time, which is less than or equal to one-half frame, so that the first and second viewing angles can both obtain display pictures.

2. The display module of claim 1, wherein, The control electrode comprises a transparent electrode layer and a transparent electrode group, and the transparent electrode layer is arranged between the electro-deformation layer and the pixel layer; The transparent electrode group is arranged on the side of the electro-deformation layer away from the pixel layer, and comprises a plurality of first electrodes and a plurality of second electrodes arranged in a spaced manner. The transparent electrode layer and the first electrode are electrified to form the first electric field. The transparent electrode layer and the second electrode are electrified to form the second electric field.

3. The display module of claim 2, wherein, The first guide structure comprises a first refractive surface, the first electric field acts on the electro-deformation portions to form the first refractive surface toward the first viewing angle, and the first refractive surface deflects light passing through the display sub-pixels to the first viewing angle. The second guide structure comprises a second refractive surface, the second electric field acts on the electro-deformation portions to form the second refractive surface toward the second viewing angle, and the second refractive surface deflects light passing through the display sub-pixels to the second viewing angle.

4. The display module of claim 3, wherein, The transparent electrode group further comprises a third electrode, which is arranged in a spaced manner with the first and second electrodes, respectively, and forms a third electric field between the third electrode and the transparent electrode layer, the third electric field acts on the electro-deformation layer to form a third refractive surface toward a third viewing angle; The first and second viewing angles are located on the left and right sides of the center line of the display module, respectively, and the third viewing angle is located on the upper or lower side of the center line of the display module.

5. The display module of claim 2, wherein, The coverage area of the first electrode is S1, the coverage area of the second electrode is S2, and the light-emitting surface of the display sub-pixel is S, which satisfies 15%≤S1 / S≤25% and 15%≤S2 / A≤25%.

6. The display module of claim 2, wherein, The spacing distance between the first and second electrodes is L, and the width of the display sub-pixel is W, which satisfies 20%≤L / W≤60%.

7. The display module of any one of claims 1 to 6, wherein, The display module further comprises a transparent spacer, which is arranged between two adjacent electro-deformation parts.

8. A display method characterized by comprising: The display method is applied to the display module according to any one of claims 1 to 7, and the display method comprises: generating a switching instruction; based on the switching instruction, supplying power to the control electrode, and controlling the control electrode to switch between the first electric field and the second electric field according to the preset time, wherein the preset time is less than or equal to one-half frame.

9. The display method according to claim 8, wherein The display method further comprises: generating an adjustment instruction, and adjusting the power supply to the control electrode based on the adjustment instruction to adjust the position of the first viewing angle and / or the second viewing angle.

10. A display device, characterized by comprising: The display device comprises an upper substrate, a lower substrate and a display module according to any one of claims 1 to 7, the upper substrate and the lower substrate are opposite, and the display module is arranged between the upper substrate and the lower substrate.

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