Display device and display method

Abstract

The application relates to a display device and a display method. The display device comprises: a display device, the display device comprising: an optical regulation module located at the light-emitting side of a display panel; and a control module used for controlling the display device to enter a floating display mode, the floating display mode being adjusting the optical parameters of the optical regulation module, so that the optical regulation module deflects and aggregates the light emitted by the display panel to form a floating display image in the air at the light-emitting side of the optical regulation module, and the included angle between the floating display image and the display panel is within a first preset included angle range. The display device solves the problem that the viewing effect is poor when a user cannot watch the screen center at a close distance in the prior art.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display device and display method. Background Technology

[0002] Currently, mobile terminals are mainly suitable for scenarios where users are looking directly at the screen at close range. In some scenarios, users cannot look directly at the center of the screen at close range. For example, when a user needs to eat, they may place their phone on the dining table at a distance from the user, making it impossible to look directly at the center of the screen at close range. This results in a large angle between the phone and the screen's center normal, exceeding the optimal viewing angle range and leading to a poor viewing experience. Summary of the Invention

[0003] This application provides a display device and display method to solve the problem in the prior art where the viewing effect is poor when the user cannot look directly at the center of the screen at close range.

[0004] In a first aspect, this application provides a display device, the display device comprising: an optical control module located on the light-emitting side of a display panel; and a control module configured to control the display device to enter a floating display mode, wherein the floating display mode involves adjusting the optical parameters of the optical control module to deflect and converge the light emitted by the display panel, thereby forming a floating display image in the air on the light-emitting side of the optical control module, the angle between the floating display image and the display panel being within a first preset angle range.

[0005] Optionally, the display panel includes a plurality of sub-pixel units, and the optical control module includes a plurality of thermo-deformation lenses, each of the plurality of thermo-deformation lenses corresponding one-to-one with the plurality of sub-pixel units. Each thermo-deformation lens is located on the light-emitting side of the corresponding sub-pixel unit, and the concave surface of the thermo-deformation lens is far away from the light-emitting side of the corresponding sub-pixel unit. The optical parameter is the focal position of the thermo-deformation lens. The control module is used to adjust the focal position of the concave surface of the thermo-deformation lens corresponding to each target sub-pixel unit to the corresponding target focal position, so that the thermo-deformation lens deflects and converges the light emitted by the target sub-pixel unit to form the suspended display image in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit for displaying a sub-pixel of the original display image in the display panel, and one target sub-pixel unit corresponds to one target focal position.

[0006] Optionally, the control module is used to: acquire a target angle and an image acquired by an image acquisition module, wherein the target angle is the angle between the display device and the horizontal plane; and control the display device to enter the floating display mode when the target angle is within a second preset angle range and the image does not contain a human eye.

[0007] Optionally, the control module is configured to: after controlling the display device to enter the floating display mode, acquire the target angle again; and when the target angle is not within the second preset angle range, control the display device to exit the floating display mode.

[0008] Optionally, the display device further includes: a driving circuit, the driving circuit including multiple electrode arrays, the multiple electrode arrays corresponding one-to-one with the multiple thermo-deformed lenses, the electrode arrays being disposed on the backlight side of the corresponding thermo-deformed lenses, the electrode arrays including multiple electrodes; the control module is configured to: obtain position information of multiple target sub-pixel units among the multiple sub-pixel units according to the original display image; determine the driving voltage of all electrodes in the electrode array corresponding to the multiple target sub-pixel units according to the position information of the multiple target sub-pixel units; for each target sub-pixel unit, output the driving voltage of each electrode in the electrode array corresponding to the target sub-pixel unit to the electrode, so as to adjust the focal position of the concave surface of the thermo-deformed lens corresponding to the target sub-pixel unit to the corresponding target focal position.

[0009] Optionally, the control module is used to: input the position information of the plurality of target sub-pixel units into a trained neural network model to obtain the driving voltage of all electrodes in the electrode array corresponding to the plurality of target sub-pixel units.

[0010] Optionally, the display device further includes a touch panel cover glass, which is located on the light-emitting side of the optical control module.

[0011] Optionally, the thermo-deformable lens is made of graphene.

[0012] Secondly, this application provides a display method, which is applied to any of the aforementioned display devices. The method includes: controlling the display device to enter a floating display mode, wherein the floating display mode is to adjust the optical parameters of the optical control module so that the optical control module deflects and converges the light emitted by the display panel to form a floating display image in the air on the light-emitting side of the optical control module, wherein the angle between the floating display image and the display panel is within a first preset angle range.

[0013] Optionally, controlling the display device to enter the floating display mode includes: acquiring a target angle and an image acquired by an image acquisition module, wherein the target angle is the angle between the display device and the horizontal plane; and controlling the display device to enter the floating display mode when the target angle is within a second preset angle range and the image does not contain a human eye. In this embodiment, the control module adjusts the optical parameters of the optical control module to deflect and converge the light emitted by the display panel, thereby forming a floating display image in the air on the light-emitting side of the optical control module. The angle between the floating display image and the display panel is within a first preset angle range, so that the orientation of the floating display image matches the user's line of sight. This ensures that the angle between the center normal of the floating image and the user's line of sight is within the optimal viewing angle range, thus guaranteeing the user's viewing effect and solving the problem of poor viewing effect when the user cannot directly face the center of the screen for close viewing in the prior art. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 A first side view of a display panel provided in an embodiment of this application; Figure 2 A top view of a display device provided in an embodiment of this application; Figure 3 A front view of a display device provided in an embodiment of this application; Figure 4 A second side view of a display panel provided in an embodiment of this application; Figure 5 A schematic diagram of an electrode array provided in an embodiment of this application; Figure 6(a) is a schematic diagram of the first type of concave surface of the thermo-deformable lens provided in the embodiment of this application; Figure 6(b) is a schematic diagram of the first distribution of the driving voltage of the electrodes in the electrode array provided in the embodiment of this application; Figure 7(a) is a schematic diagram of the second type of concave surface of the thermo-deformable lens provided in the embodiment of this application; Figure 7(b) is a schematic diagram of a second distribution of the driving voltage of the electrodes in the electrode array provided in the embodiment of this application; Figure 8(a) is a schematic diagram of the third concave surface of the thermo-deformable lens provided in the embodiment of this application; Figure 8(b) is a schematic diagram of a third distribution of the driving voltage of the electrodes in the electrode array provided in the embodiment of this application; The accompanying diagrams in the instruction manual are illustrated below: 1. Display panel; 10. Sub-pixel unit; 2. Optical control module; 20. Thermo-deformed lens; 3. Driving circuit; 30. Electrode array; 300. Electrode; 4. Touch panel cover glass; 5. Original display image; 6. Floating display image; 7. Image acquisition module. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0020] To address the problem of poor viewing experience when users cannot directly face the center of the screen for close-up viewing, this application provides a display device and display method that can solve the problem of poor viewing experience when users cannot directly face the center of the screen for close-up viewing.

[0021] Figure 1 A display device provided in the embodiments of this application, such as Figure 1 As shown, the above-mentioned display device includes: Optical control module 2, which is located on the light-emitting side of display panel 1; The control module is used to control the display device to enter the floating display mode. The floating display mode is to adjust the optical parameters of the optical control module 2 so that the optical control module 2 deflects and converges the light emitted by the display panel 1 to form a floating display image 6 in the air on the light-emitting side of the optical control module 2. The angle between the floating display image and the display panel 1 is within a first preset angle range.

[0022] Specifically, such as Figure 1 and Figure 2 As shown, the original display image 5 is located in the display panel 1. A represents the angle between the floating display image 6 and the display panel 1. The angle between the floating display image 6 and the display panel 1 is actually the angle between the plane where the floating display image 6 is located and the plane where the display panel 1 is located. For example, the first preset angle range of A is [45°, 60°].

[0023] Through the above embodiments, the control module adjusts the optical parameters of the optical control module, causing the optical control module to deflect and converge the light emitted by the display panel, so as to form a suspended display image in the air on the light-emitting side of the optical control module. The angle between the suspended display image and the display panel is within the first preset angle range, so that the orientation of the suspended display image is adapted to the user's line of sight. Even if the angle between the center normal of the suspended image and the user's line of sight is within the optimal viewing angle range, the user's viewing effect is guaranteed, thereby solving the problem of poor viewing effect when the user cannot look directly at the center of the screen at close range in the prior art.

[0024] In an optional embodiment, the control module described above is used for: The target angle and the image acquired by the image acquisition module are obtained, wherein the target angle is the angle between the display device and the horizontal plane; Specifically, such as Figure 2 As shown, the image acquisition module 7 is located on the non-display area of ​​the display panel.

[0025] When the target angle is within the second preset angle range and the image does not contain a human eye, the display device is controlled to enter the floating display mode.

[0026] Specifically, considering scenarios where the display device is tilted, i.e., there is an angle between the display device and the horizontal plane, if the floating display mode is forcibly enabled, the orientation of the floating image may not match the user's line of sight, resulting in a poor viewing experience. Therefore, a level is installed on the display device to detect the target angle. When the target angle is 0°, i.e., when the angle between the display device and the horizontal plane is 0°, it is determined that the display device is horizontally placed and not tilted. At this point, the floating display mode can be enabled. Furthermore, considering the detection error of the level, a second preset angle range is set using the detection error range of the level. 0° falls within the second preset angle range. For example, the second preset angle range is [0°, 5°). When the target angle is within the second preset angle range, it is determined that the display device is horizontally placed and not tilted. When the display device is placed horizontally and without tilt, the floating display mode can be activated to ensure the stability and reliability of the judgment. It is also necessary to control the image acquisition module on the display panel to acquire an image and determine whether the acquired image contains a human eye. If no human eye is contained, it is determined that the user is not looking directly at the center of the screen at close range, and there is a large angle between the user's line of sight and the normal of the screen center, which exceeds the optimal viewing angle range, resulting in a poor viewing experience for the user. In this case, the floating display mode needs to be activated. The floating display mode is triggered based on the dual conditions of the display device posture and human eye recognition. When the target angle is within the second preset angle range and the image acquired by the image acquisition module does not contain a human eye, the floating display mode is activated, so that the user can still obtain a good viewing experience even when they cannot look directly at the center of the screen at close range.

[0027] Specifically, such as Figure 1 and Figure 3 As shown, E represents the human eye, L represents the user's line of sight, and B represents the angle between the display panel 1 and the user's line of sight L. The image acquisition module 7 is set at... Figure 3 In the top position of the display panel 1, when B is less than 40°, the user is not looking directly at the center of the screen at close range. At this time, there is a large angle between the user's line of sight and the normal to the center of the screen. The image acquisition module 7 cannot capture the user's eyes. Therefore, by determining whether the image captured by the image acquisition module 7 contains the human eye, if it does not contain the human eye, it can be determined that the user is not looking directly at the center of the screen at close range and there is a large angle between the user's line of sight and the normal to the center of the screen, which is outside the optimal viewing angle range.

[0028] In an optional embodiment, the control module described above is used for: After controlling the above-mentioned display device to enter the above-mentioned floating display mode, the above-mentioned target angle is obtained again; When the target angle is not within the range of the second preset angle, the display device is controlled to exit the floating display mode.

[0029] Specifically, considering scenarios where the display device is tilted, i.e., there is an angle between the display device and the horizontal plane, if the floating display mode is forcibly activated, the orientation of the floating display image may not match the user's line of sight, resulting in a poor viewing experience. Therefore, after entering the floating mode, the target angle is continuously detected, i.e., the angle between the display device and the horizontal plane is continuously detected. When the target angle is not within the second preset angle range, for example, if the target angle is ≥5°, it is determined that the display device is tilted. At this time, the floating display mode is exited.

[0030] In one alternative embodiment, such as Figure 1 and Figure 4 As shown, the display panel 1 includes: a plurality of sub-pixel units 10, and the optical control module 2 includes: Multiple thermo-deformable lenses 20 are provided, each corresponding to one of the multiple sub-pixel units 10. Each thermo-deformable lens 20 is located on the light-emitting side of the corresponding sub-pixel unit 10, and the concave surface of the thermo-deformable lens 20 is far away from the light-emitting side of the corresponding sub-pixel unit 10. The optical parameters are the focal positions of the thermo-deformable lenses 20. Specifically, the orthographic projection of each thermo-deformable lens 20 onto the display panel 1 covers the orthographic projection of the corresponding sub-pixel unit 10 onto the display panel 1, so as to ensure that all the light emitted by the sub-pixel unit 10 can be incident on the corresponding thermo-deformable lens 20, thereby ensuring the imaging effect of the floating display image.

[0031] Specifically, it should be noted that when the display device is in normal display mode, the thermo-deformable lens 20 does not deform, has no concave structure, and the optical control module is equivalent to a plane lens, maintaining the conventional vertical light output plane display effect.

[0032] The control module is used to adjust the focal position of the concave surface of the thermo-deformation lens 20 corresponding to each target sub-pixel unit to the corresponding target focal position F, so that the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit to form the suspended display image 6 in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit 10 for displaying a sub-pixel of the original display image 5 in the display panel 1, and one target sub-pixel unit corresponds to one target focal position F.

[0033] Specifically, each thermo-deformed lens 20 is transparent.

[0034] Specifically, Figure 4 In the diagram, E represents the human eye, F represents the target focal point, and the arrow direction indicates the direction of the light emitted from sub-pixel unit 10, such as... Figure 4As shown, the display panel 1 includes multiple sub-pixel units 10, and the optical control module 2 includes multiple thermo-deformation lenses 20. Each thermo-deformation lens 20 corresponds one-to-one with the multiple sub-pixel units 10. Each thermo-deformation lens 20 is located on the light-emitting side of the corresponding sub-pixel unit 10, and the concave surface of the thermo-deformation lens 20 is far away from the light-emitting side of the corresponding sub-pixel unit 10. The focal position of the concave surface of the thermo-deformation lens 20 corresponding to each target sub-pixel unit is adjusted to the corresponding target focal position, so that the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit to form a suspended display image 6 in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit 10 used to display one sub-pixel of the original display image 5, and one target sub-pixel unit corresponds to one target focal position F.

[0035] In one alternative embodiment, such as Figure 4 and Figure 5 As shown, the above-mentioned display device further includes: a driving circuit 3, the driving circuit 3 including a plurality of electrode arrays 30, the plurality of electrode arrays 30 corresponding one-to-one with the plurality of thermo-deformed lenses 20, the electrode array 30 including: a plurality of electrodes 300, the electrode array 30 being disposed on the backlight side of the corresponding thermo-deformed lens 20. Specifically, each electrode 300 in the electrode array 30 is transparent and has a negligible refractive index.

[0036] Specific, exemplary, such as Figure 5 As shown, the electrode array 30 includes nine square electrodes 300, which are arranged in a 3x3 grid. Figure 5 The number and position of electrodes 300 in electrode array 30 are given only as examples, and this application does not limit the number and position of electrodes 300 in electrode array 30.

[0037] The above control module is used for: Based on the original display image above, obtain the position information of multiple target sub-pixel units in the multiple sub-pixel units 10 above; Specifically, the position information of the target sub-pixel unit can be the horizontal and vertical coordinates of the sub-pixel in the original image displayed by the target sub-pixel unit.

[0038] Based on the position information of the multiple target sub-pixel units, the driving voltage of all electrodes 300 in the electrode array 30 corresponding to the multiple target sub-pixel units is determined; For each of the aforementioned target sub-pixel units, the driving voltage of each electrode 300 in the electrode array 30 corresponding to the aforementioned target sub-pixel unit is output to the aforementioned electrode 300, so as to adjust the focal position of the concave surface of the thermo-deformed lens 20 corresponding to the aforementioned target sub-pixel unit to the corresponding target focal position.

[0039] Specifically, this application uses a thermo-deformable lens 20. By adjusting the driving voltage of each electrode 300 in the electrode array 30, the heat emitted by each electrode 300 in the electrode array 30 is adjusted. The greater the driving voltage of the electrode 300, the greater the heat emitted by the electrode 300, and thus the greater the degree of expansion at the position corresponding to the electrode 300 in the thermo-deformable lens 20. This adjusts the shape of the concave surface of the thermo-deformable lens 20, thereby adjusting the focal position of the concave surface of the thermo-deformable lens 20.

[0040] Specifically, Figure 3 In the diagram, S represents the center line, which is a horizontal midline extending along the width of the display panel 1, such as... Figure 1 and Figure 3As shown, M1, M2, and M3 represent three sub-pixels in the original display image 5. M1 is located above the center line S, M2 is located on the center line S, and M3 is located below the center line S. N1 represents the sub-pixel mapped to M1 in the floating display image 6, N2 represents the sub-pixel mapped to M2 in the floating display image 6, and N3 represents the sub-pixel mapped to M3 in the floating display image 6. C1 represents the angle between the line connecting M1 and N1 and the display panel 1, C2 represents the angle (right angle) between the line connecting M2 and N2 and the display panel 1, and C3 represents the angle between the line connecting M3 and N3 and the display panel 1. Since the angle between the floating display image 6 and the display panel 1 needs to be within the first preset angle range, for M1 located above the center line S, C... 1. The angle should be less than 90°. At this time, the shape of the concave surface of the thermo-deformed lens 20 should be as shown in Figure 6(a). At this time, the expansion degree of the upper part of the thermo-deformed lens 20 should be greater, so that the focal point of the thermo-deformed lens 20 is located at N1. That is, after the thermo-deformed lens 20 deflects and converges the light emitted by the target sub-pixel unit, it forms N1. At this time, as shown in Figure 6(b), for example, in the electrode array 30 corresponding to the thermo-deformed lens 20, the driving voltage of the upper three electrodes 300 is 2V, the driving voltage of the middle three electrodes 300 is 1V, and the driving voltage of the lower three electrodes 300 is 0.5V. For M3 located below the center line S, C3 should be less than 90°. Therefore, the target of displaying M3 should be... The concave shape of the thermo-deformed lens 20 corresponding to the target sub-pixel unit should be as shown in Figure 7(a). The expansion degree of the lower position in the thermo-deformed lens 20 should be greater, so that the focal point of the thermo-deformed lens 20 is located at N3. That is, after the thermo-deformed lens 20 deflects and converges the light emitted by the target sub-pixel unit, N3 is formed. At this time, as shown in Figure 7(b), for example, in the electrode array 30 corresponding to the thermo-deformed lens 20, the driving voltage of the upper three electrodes 300 is 0.5V, the driving voltage of the middle three electrodes 300 is 1V, and the driving voltage of the lower three electrodes 300 is 2V. For M2 located on the center line, C2 should be 90°. At this time, the thermo-deformed lens 20 corresponding to the target sub-pixel unit of M2 displays the thermal expansion. The concave shape of the thermo-deformation lens 20 should be as shown in Figure 8(a). Compared to the center position of the thermo-deformation lens 20, the expansion degree of the lower and upper positions of the thermo-deformation lens 20 should be greater, so that the focal point of the thermo-deformation lens 20 is located at N2. That is, after the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit, it forms N2. At this time, as shown in Figure 8(b), for example, in the electrode array 30 corresponding to the thermo-deformation lens 20, the driving voltages of the upper three electrodes 300 are 2V, 1.5V and 2V, respectively; the driving voltages of the middle three electrodes 300 are 1.5V, 0V and 1.5V, respectively; and the driving voltages of the lower three electrodes 300 are 2V, 1.5V and 2V, respectively.

[0041] In an optional embodiment, the control module described above is used for: The position information of the above target sub-pixel units is input into the trained neural network model to obtain the driving voltage of all electrodes in the electrode array corresponding to the above target sub-pixel units.

[0042] Specifically, a neural network model is pre-trained using training data. When the display device is actually running, the position information of the above-mentioned multiple target sub-pixel units is input into the trained neural network model, and the driving voltage of all electrodes in the electrode array corresponding to the above-mentioned multiple target sub-pixel units can be obtained.

[0043] Specifically, the training data includes: multiple training samples, each training sample including: the position information of the target sub-pixel unit corresponding to an original display image, and the driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit. The driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit can be obtained experimentally. For example, for an original display image, the driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit is adjusted to make the floating display image achieve the best clarity and stability, and the driving voltage at this time is recorded as a training sample.

[0044] Specifically, when the display device is actually running, the position information of multiple target sub-pixel units is input into the trained neural network model, which can quickly and accurately output the driving voltage of all electrodes in the electrode array corresponding to the multiple target sub-pixel units. This eliminates the need for complex real-time physical calculations or iterative optimization, significantly reducing computational overhead and achieving millisecond-level driving voltage response to meet the requirements of dynamic floating display.

[0045] In one alternative embodiment, the thermo-deformable lens is made of graphene.

[0046] In one alternative embodiment, such as Figure 1 and Figure 2 As shown, the above-mentioned display device also includes: The touch panel cover glass 4 is located on the light-emitting side of the optical control module 2.

[0047] Specifically, a touch panel cover glass 4 is provided on the light-emitting side of the optical control module 2 to prevent bumps and damage to components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device. At the same time, it prevents external dust and moisture from entering components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device, thereby protecting components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device.

[0048] This application provides a display method, which can be applied to any of the above-described display devices. The method includes: Step S101: Control the display device to enter the floating display mode. The floating display mode is to adjust the optical parameters of the optical control module so that the optical control module deflects and converges the light emitted by the display panel to form a floating display image in the air on the light-emitting side of the optical control module. The angle between the floating display image and the display panel is within a first preset angle range.

[0049] Specifically, such as Figure 1 As shown, the above-mentioned display device includes: an optical control module 2, which is located on the light-emitting side of the display panel 1; and a control module.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, the original display image 5 is located in the display panel 1. A represents the angle between the floating display image 6 and the display panel 1. The angle between the floating display image 6 and the display panel 1 is actually the angle between the plane where the floating display image 6 is located and the plane where the display panel 1 is located. For example, the first preset angle range of A is [45°, 60°].

[0051] Through the above embodiments, the control module adjusts the optical parameters of the optical control module, causing the optical control module to deflect and converge the light emitted by the display panel, so as to form a suspended display image in the air on the light-emitting side of the optical control module. The angle between the suspended display image and the display panel is within the first preset angle range, so that the orientation of the suspended display image is adapted to the user's line of sight. Even if the angle between the center normal of the suspended image and the user's line of sight is within the optimal viewing angle range, the user's viewing effect is guaranteed, thereby solving the problem of poor viewing effect when the user cannot look directly at the center of the screen at close range in the prior art.

[0052] In an optional embodiment, step S101 above can be implemented as follows: The target angle and the image acquired by the image acquisition module are obtained, wherein the target angle is the angle between the display device and the horizontal plane; Specifically, such as Figure 2 As shown, the image acquisition module 7 is located on the non-display area of ​​the display panel.

[0053] When the target angle is within the second preset angle range and the image does not contain a human eye, the display device is controlled to enter the floating display mode.

[0054] Specifically, considering scenarios where the display device is tilted, i.e., there is an angle between the display device and the horizontal plane, if the floating display mode is forcibly enabled, the orientation of the floating image may not match the user's line of sight, resulting in a poor viewing experience. Therefore, a level is installed on the display device to detect the target angle. When the target angle is 0°, i.e., when the angle between the display device and the horizontal plane is 0°, it is determined that the display device is horizontally placed and not tilted. At this point, the floating display mode can be enabled. Furthermore, considering the detection error of the level, a second preset angle range is set using the detection error range of the level. 0° falls within the second preset angle range. For example, the second preset angle range is [0°, 5°). When the target angle is within the second preset angle range, it is determined that the display device is horizontally placed and not tilted. When the display device is placed horizontally and without tilt, the floating display mode can be activated to ensure the stability and reliability of the judgment. It is also necessary to control the image acquisition module on the display panel to acquire an image and determine whether the acquired image contains a human eye. If no human eye is contained, it is determined that the user is not looking directly at the center of the screen at close range, and there is a large angle between the user's line of sight and the normal of the screen center, which exceeds the optimal viewing angle range, resulting in a poor viewing experience for the user. In this case, the floating display mode needs to be activated. The floating display mode is triggered based on the dual conditions of the display device posture and human eye recognition. When the target angle is within the second preset angle range and the image acquired by the image acquisition module does not contain a human eye, the floating display mode is activated, so that the user can still obtain a good viewing experience even when they cannot look directly at the center of the screen at close range.

[0055] Specifically, such as Figure 1 and Figure 3 As shown, E represents the human eye, L represents the user's line of sight, and B represents the angle between the display panel 1 and the user's line of sight L. The image acquisition module 7 is set at... Figure 3 In the top position of the display panel 1, when B is less than 40°, the user is not looking directly at the center of the screen at close range. At this time, there is a large angle between the user's line of sight and the normal to the center of the screen. The image acquisition module 7 cannot capture the user's eyes. Therefore, by determining whether the image captured by the image acquisition module 7 contains the human eye, if it does not contain the human eye, it can be determined that the user is not looking directly at the center of the screen at close range and there is a large angle between the user's line of sight and the normal to the center of the screen, which is outside the optimal viewing angle range.

[0056] In an optional embodiment, the above method further includes: After controlling the above-mentioned display device to enter the above-mentioned floating display mode, the above-mentioned target angle is obtained again; When the target angle is not within the range of the second preset angle, the display device is controlled to exit the floating display mode.

[0057] Specifically, considering scenarios where the display device is tilted, i.e., there is an angle between the display device and the horizontal plane, if the floating display mode is forcibly activated, the orientation of the floating display image may not match the user's line of sight, resulting in a poor viewing experience. Therefore, after entering the floating mode, the target angle is continuously detected, i.e., the angle between the display device and the horizontal plane is continuously detected. When the target angle is not within the second preset angle range, for example, if the target angle is ≥5°, it is determined that the display device is tilted. At this time, the floating display mode is exited.

[0058] In one alternative embodiment, such as Figure 1 and Figure 4 As shown, the display panel 1 includes: a plurality of sub-pixel units 10, and the optical control module 2 includes: Multiple thermo-deformable lenses 20 are provided, each corresponding to one of the multiple sub-pixel units 10. Each thermo-deformable lens 20 is located on the light-emitting side of the corresponding sub-pixel unit 10, and the concave surface of the thermo-deformable lens 20 is far away from the light-emitting side of the corresponding sub-pixel unit 10. The optical parameters are the focal positions of the thermo-deformable lenses 20. Specifically, the orthographic projection of each thermo-deformable lens 20 onto the display panel 1 covers the orthographic projection of the corresponding sub-pixel unit 10 onto the display panel 1, so as to ensure that all the light emitted by the sub-pixel unit 10 can be incident on the corresponding thermo-deformable lens 20, thereby ensuring the imaging effect of the floating display image.

[0059] Specifically, it should be noted that when the display device is in normal display mode, the thermo-deformable lens 20 does not deform, has no concave structure, and the optical control module is equivalent to a plane lens, maintaining the conventional vertical light output plane display effect.

[0060] The above step S101 can be implemented as follows: The focal position of the concave surface of the thermo-deformation lens 20 corresponding to each target sub-pixel unit is adjusted to the corresponding target focal position F, so that the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit to form the suspended display image 6 in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit 10 for displaying a sub-pixel of the original display image 5 in the display panel 1, and one target sub-pixel unit corresponds to one target focal position F.

[0061] Specifically, each thermo-deformed lens 20 is transparent.

[0062] Specifically, Figure 4 In the diagram, E represents the human eye, F represents the target focal point, and the arrow direction indicates the direction of the light emitted from sub-pixel unit 10, such as... Figure 4As shown, the display panel 1 includes multiple sub-pixel units 10, and the optical control module 2 includes multiple thermo-deformation lenses 20. Each thermo-deformation lens 20 corresponds one-to-one with the multiple sub-pixel units 10. Each thermo-deformation lens 20 is located on the light-emitting side of the corresponding sub-pixel unit 10, and the concave surface of the thermo-deformation lens 20 is far away from the light-emitting side of the corresponding sub-pixel unit 10. The focal position of the concave surface of the thermo-deformation lens 20 corresponding to each target sub-pixel unit is adjusted to the corresponding target focal position, so that the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit to form a suspended display image 6 in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit 10 used to display one sub-pixel of the original display image 5, and one target sub-pixel unit corresponds to one target focal position F.

[0063] In one alternative embodiment, such as Figure 4 and Figure 5 As shown, the above-mentioned display device further includes: a driving circuit 3, the driving circuit 3 including a plurality of electrode arrays 30, the plurality of electrode arrays 30 corresponding one-to-one with the plurality of thermo-deformed lenses 20, the electrode array 30 including: a plurality of electrodes 300, the electrode array 30 being disposed on the backlight side of the corresponding thermo-deformed lens 20. Specifically, each electrode 300 in the electrode array 30 is transparent and has a negligible refractive index.

[0064] Specific, exemplary, such as Figure 5 As shown, the electrode array 30 includes nine square electrodes 300, which are arranged in a 3x3 grid. Figure 5 The number and position of electrodes 300 in electrode array 30 are given only as examples, and this application does not limit the number and position of electrodes 300 in electrode array 30.

[0065] Adjusting the focal position of the concave surface of the thermo-deformed lens 20 corresponding to each target sub-pixel unit to the corresponding target focal position F can be achieved as follows: Based on the original display image above, obtain the position information of multiple target sub-pixel units in the multiple sub-pixel units 10 above; Specifically, the position information of the target sub-pixel unit can be the horizontal and vertical coordinates of the sub-pixel in the original image displayed by the target sub-pixel unit.

[0066] Based on the position information of the multiple target sub-pixel units, the driving voltage of all electrodes 300 in the electrode array 30 corresponding to the multiple target sub-pixel units is determined; For each of the aforementioned target sub-pixel units, the driving voltage of each electrode 300 in the electrode array 30 corresponding to the aforementioned target sub-pixel unit is output to the aforementioned electrode 300, so as to adjust the focal position of the concave surface of the thermo-deformed lens 20 corresponding to the aforementioned target sub-pixel unit to the corresponding target focal position.

[0067] Specifically, this application uses a thermo-deformable lens 20. By adjusting the driving voltage of each electrode 300 in the electrode array 30, the heat emitted by each electrode 300 in the electrode array 30 is adjusted. The greater the driving voltage of the electrode 300, the greater the heat emitted by the electrode 300, and thus the greater the degree of expansion at the position corresponding to the electrode 300 in the thermo-deformable lens 20. This adjusts the shape of the concave surface of the thermo-deformable lens 20, thereby adjusting the focal position of the concave surface of the thermo-deformable lens 20.

[0068] Specifically, Figure 3 In the diagram, S represents the center line, which is a horizontal midline extending along the width of the display panel 1, such as... Figure 1 and Figure 3As shown, M1, M2, and M3 represent three sub-pixels in the original display image 5. M1 is located above the center line S, M2 is located on the center line S, and M3 is located below the center line S. N1 represents the sub-pixel mapped to M1 in the floating display image 6, N2 represents the sub-pixel mapped to M2 in the floating display image 6, and N3 represents the sub-pixel mapped to M3 in the floating display image 6. C1 represents the angle between the line connecting M1 and N1 and the display panel 1, C2 represents the angle (right angle) between the line connecting M2 and N2 and the display panel 1, and C3 represents the angle between the line connecting M3 and N3 and the display panel 1. Since the angle between the floating display image 6 and the display panel 1 needs to be within the first preset angle range, for M1 located above the center line S, C... 1. The angle should be less than 90°. At this time, the shape of the concave surface of the thermo-deformed lens 20 should be as shown in Figure 6(a). At this time, the expansion degree of the upper part of the thermo-deformed lens 20 should be greater, so that the focal point of the thermo-deformed lens 20 is located at N1. That is, after the thermo-deformed lens 20 deflects and converges the light emitted by the target sub-pixel unit, it forms N1. At this time, as shown in Figure 6(b), for example, in the electrode array 30 corresponding to the thermo-deformed lens 20, the driving voltage of the upper three electrodes 300 is 2V, the driving voltage of the middle three electrodes 300 is 1V, and the driving voltage of the lower three electrodes 300 is 0.5V. For M3 located below the center line S, C3 should be less than 90°. Therefore, the target of displaying M3 should be... The concave shape of the thermo-deformed lens 20 corresponding to the target sub-pixel unit should be as shown in Figure 7(a). The expansion degree of the lower position in the thermo-deformed lens 20 should be greater, so that the focal point of the thermo-deformed lens 20 is located at N3. That is, after the thermo-deformed lens 20 deflects and converges the light emitted by the target sub-pixel unit, N3 is formed. At this time, as shown in Figure 7(b), for example, in the electrode array 30 corresponding to the thermo-deformed lens 20, the driving voltage of the upper three electrodes 300 is 0.5V, the driving voltage of the middle three electrodes 300 is 1V, and the driving voltage of the lower three electrodes 300 is 2V. For M2 located on the center line, C2 should be 90°. At this time, the thermo-deformed lens 20 corresponding to the target sub-pixel unit of M2 displays the thermal expansion. The concave shape of the thermo-deformation lens 20 should be as shown in Figure 8(a). Compared to the center position of the thermo-deformation lens 20, the expansion degree of the lower and upper positions of the thermo-deformation lens 20 should be greater, so that the focal point of the thermo-deformation lens 20 is located at N2. That is, after the thermo-deformation lens 20 deflects and converges the light emitted by the target sub-pixel unit, it forms N2. At this time, as shown in Figure 8(b), for example, in the electrode array 30 corresponding to the thermo-deformation lens 20, the driving voltages of the upper three electrodes 300 are 2V, 1.5V and 2V, respectively; the driving voltages of the middle three electrodes 300 are 1.5V, 0V and 1.5V, respectively; and the driving voltages of the lower three electrodes 300 are 2V, 1.5V and 2V, respectively.

[0069] In an optional embodiment, determining the driving voltage of all electrodes 300 in the electrode array 30 corresponding to the plurality of target sub-pixel units based on the position information of the plurality of target sub-pixel units can be achieved as follows: The position information of the above target sub-pixel units is input into the trained neural network model to obtain the driving voltage of all electrodes in the electrode array corresponding to the above target sub-pixel units.

[0070] Specifically, a neural network model is pre-trained using training data. When the display device is actually running, the position information of the above-mentioned multiple target sub-pixel units is input into the trained neural network model, and the driving voltage of all electrodes in the electrode array corresponding to the above-mentioned multiple target sub-pixel units can be obtained.

[0071] Specifically, the training data includes: multiple training samples, each training sample including: the position information of the target sub-pixel unit corresponding to an original display image, and the driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit. The driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit can be obtained experimentally. For example, for an original display image, the driving voltage of all electrodes in the electrode array corresponding to the target sub-pixel unit is adjusted to make the floating display image achieve the best clarity and stability, and the driving voltage at this time is recorded as a training sample.

[0072] In one alternative embodiment, the thermo-deformable lens is made of graphene.

[0073] In one alternative embodiment, such as Figure 1 and Figure 2 As shown, the above-mentioned display device also includes: The touch panel cover glass 4 is located on the light-emitting side of the optical control module 2.

[0074] Specifically, a touch panel cover glass 4 is provided on the light-emitting side of the optical control module 2 to prevent bumps and damage to components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device. At the same time, it prevents external dust and moisture from entering components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device, thereby protecting components such as the display panel 1, optical control module 2, and driving circuit 3 in the display device.

[0075] Specifically, when the display device is actually running, the position information of multiple target sub-pixel units is input into the trained neural network model, which can quickly and accurately output the driving voltage of all electrodes in the electrode array corresponding to the multiple target sub-pixel units. This eliminates the need for complex real-time physical calculations or iterative optimization, significantly reducing computational overhead and achieving millisecond-level driving voltage response to meet the requirements of dynamic floating display.

[0076] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0077] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A display device, characterized in that, The display device includes: An optical control module, wherein the optical control module is located on the light-emitting side of the display panel; The control module is used to control the display device to enter the floating display mode. The floating display mode is to adjust the optical parameters of the optical control module so that the optical control module deflects and converges the light emitted by the display panel to form a floating display image in the air on the light-emitting side of the optical control module. The angle between the floating display image and the display panel is within a first preset angle range.

2. The display device according to claim 1, characterized in that, The display panel includes: a plurality of sub-pixel units, and the optical control module includes: Multiple thermo-deformable lenses are provided, each corresponding to a single sub-pixel unit. Each thermo-deformable lens is located on the light-emitting side of the corresponding sub-pixel unit, and the concave surface of the thermo-deformable lens is far from the light-emitting side of the corresponding sub-pixel unit. The optical parameter is the focal position of the thermo-deformable lens. The control module is used to adjust the focal position of the concave surface of the thermo-deformation lens corresponding to each target sub-pixel unit to the corresponding target focal position, so that the thermo-deformation lens deflects and converges the light emitted by the target sub-pixel unit to form the suspended display image in the air on the light-emitting side of the display panel. Each target sub-pixel unit is a sub-pixel unit of a sub-pixel used to display the original display image in the display panel, and one target sub-pixel unit corresponds to one target focal position.

3. The display device according to claim 1, characterized in that, The control module is used for: The target angle and the image acquired by the image acquisition module are obtained, wherein the target angle is the angle between the display device and the horizontal plane; When the target angle is within the second preset angle range and the image does not contain a human eye, the display device is controlled to enter the floating display mode.

4. The display device according to claim 3, characterized in that, The control module is used for: After controlling the display device to enter the floating display mode, the target angle is acquired again; When the target angle is not within the second preset angle range, the display device is controlled to exit the floating display mode.

5. The display device according to claim 2, characterized in that, The display device further includes: a driving circuit, the driving circuit including multiple electrode arrays, the multiple electrode arrays corresponding one-to-one with the multiple thermo-deformed lenses, the electrode arrays being disposed on the backlight side of the corresponding thermo-deformed lenses, the electrode arrays including multiple electrodes; The control module is used for: Based on the original display image, obtain the position information of multiple target sub-pixel units among the multiple sub-pixel units; Based on the position information of the plurality of target sub-pixel units, determine the driving voltage of all electrodes in the electrode array corresponding to the plurality of target sub-pixel units; For each target sub-pixel unit, the driving voltage of each electrode in the electrode array corresponding to the target sub-pixel unit is output to the electrode to adjust the focal position of the concave surface of the thermo-deformed lens corresponding to the target sub-pixel unit to the corresponding target focal position.

6. The display device according to claim 5, characterized in that, The control module is used for: The position information of the plurality of target sub-pixel units is input into the trained neural network model to obtain the driving voltage of all electrodes in the electrode array corresponding to the plurality of target sub-pixel units.

7. The display device according to any one of claims 2 to 6, characterized in that, The display device further includes: A touch panel cover glass, which is located on the light-emitting side of the optical control module.

8. The display device according to claim 2 or 5, characterized in that, The thermo-deformable lens is made of graphene.

9. A display method, characterized in that, The method is applied to the display device according to any one of claims 1 to 8, and the method includes: The display device is controlled to enter a floating display mode. The floating display mode involves adjusting the optical parameters of the optical control module so that the optical control module deflects and converges the light emitted by the display panel to form a floating display image in the air on the light-emitting side of the optical control module. The angle between the floating display image and the display panel is within a first preset angle range.

10. The display method according to claim 9, characterized in that, Controlling the display device to enter the floating display mode includes: The target angle and the image acquired by the image acquisition module are obtained, wherein the target angle is the angle between the display device and the horizontal plane; When the target angle is within the second preset angle range and the image does not contain a human eye, the display device is controlled to enter the floating display mode.

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