Near-eye display device and display compensation method thereof, electronic device and storage medium

Abstract

The present application provides a near-eye display device and a display compensation method thereof, an electronic device and a storage medium, wherein the near-eye display device comprises a near-eye display module, the near-eye display module comprises an optical machine and an optical component, the near-eye display module has an exit pupil area; a local color change module, the local color change module is arranged on the near-eye display module; a processor, the processor is electrically connected to the optical machine and the local color change module, and the processor is used to: generate image data; drive the optical machine to generate an image signal according to the image data, the image signal is transmitted from the exit pupil area to the human eye via the propagation of the optical component, and a virtual picture is formed in front of the human eye; drive the local color change module according to the image data to form a local color change area; wherein the positive projection of the local color change area on the near-eye display module partially overlaps with the exit pupil area. The near-eye display device can clearly display a virtual picture, and at the same time, it can also prevent the leakage of user sensitive information.

Description

Technical Field

[0001] The present invention relates to the field of near-eye display technology, and in particular to a near-eye display device and a display compensation method thereof, an electronic device and a storage medium. Background Art

[0002] Near-eye display devices such as AR (Augmented Reality) glasses are a new type of intelligent electronic terminal that displays virtual images on the basis of displaying real scenes, superimposing virtual images on the real field of view and presenting them directly in front of the user, thereby expanding the user's perception of the real environment. Therefore, AR glasses need to ensure the transmittance of natural light, so that natural light and light from virtual images enter the human eye at the same time, realizing the clever integration of virtual images and real scenes. Optical waveguide glasses have many advantages such as large field of view, lightweight, good light transmittance, etc., and are considered to be the mainstream trend of AR glasses in the future.

[0003] However, since the transmittance of natural light through optical waveguide glasses is too high, the contrast between the real scene and the virtual image is reduced, and the real scene and the virtual image cannot be separated, there is a risk of reduced clarity; in addition, optical waveguide glasses have a certain degree of light leakage, and others will be able to peek at the virtual image from in front of the user, leading to the leakage of sensitive information such as user privacy. Summary of the invention

[0004] Embodiments of the present application provide a near-eye display device and a display compensation method thereof, an electronic device, and a storage medium. The near-eye display device can clearly display a virtual image and prevent leakage of user sensitive information.

[0005] The embodiment of the present application provides a near-eye display device, comprising:

[0006] A near-eye display module, the near-eye display module comprising an optical machine and an optical component, the near-eye display module having an exit pupil area;

[0007] A local color changing module, wherein the local color changing module is arranged on the near-eye display module;

[0008] A processor, the processor is electrically connected to the optical machine and the local color change module, and the processor is used to:

[0009] Generate image data;

[0010] According to the image data, the optical machine is driven to generate an image signal, and the image signal is transmitted through the optical component and emitted from the exit pupil area into the human eye to form a virtual picture in front of the human eye;

[0011] Driving the local color changing module according to the image data to form a local color changing area;

[0012] Wherein, the orthographic projection of the local color-changing area on the near-eye display module at least partially overlaps with the exit pupil area.

[0013] In some embodiments, the local color change module includes an electrode layer and an electrochromic layer, the electrode layer is electrically connected to the electrochromic layer, the electrochromic layer is arranged corresponding to the exit pupil area, the processor is electrically connected to the electrode layer, and the processor is used to drive the electrode layer according to the image data so that the electrochromic layer forms a local color change area.

[0014] In some embodiments, the local color change module also includes a light-emitting driver, which is respectively connected to the electrode layer and the processor, the processor is used to transmit the image data to the light-emitting driver, and the light-emitting driver is used to generate a control signal according to the image data, and control the electrode layer according to the control signal to drive the electrochromic layer to form a local color change area.

[0015] In some embodiments, the electrode layer includes a first sub-electrode layer and a second sub-electrode layer, and the first sub-electrode layer and the second sub-electrode layer are respectively disposed on both sides of the electrochromic layer.

[0016] In some embodiments, the electrochromic layer includes N color-changing units distributed in an array; the processor is used to drive M of the color-changing units to emit light to form the local color-changing area; wherein N≥M, N and M are positive integers.

[0017] In some embodiments, the virtual picture includes a plurality of pixels, and the plurality of color changing units correspond one-to-one to the plurality of pixels of the virtual picture.

[0018] In some embodiments, the projection of the local color change area on the near-eye display module covers the exit pupil area.

[0019] In some embodiments, after receiving the image data, the processor is also used to determine whether the image data includes sensitive information; if the image data includes sensitive information, the orthographic projection of the local color change area on the near-eye display module partially overlaps with the exit pupil area to obstruct the virtual picture corresponding to the sensitive information.

[0020] In some embodiments, if the image data also includes non-sensitive information, the processor is also used to divide the local color change area into at least a first sub-area and a second sub-area, the first sub-area is used to block the virtual picture corresponding to the sensitive information, and the second sub-area is used to block the virtual picture corresponding to the non-sensitive information, and the transmittance of the first sub-area is less than or equal to the transmittance of the second sub-area.

[0021] In some embodiments, the near-eye display device also includes a sensor, which is used to detect current scene information, and the sensor is electrically connected to the processor; before driving the local color change module according to the image data, the processor is also used to obtain current scene information and determine whether the scene information meets the activation condition of the local color change module; if so, the local color change module is turned on; if not, the local color change module is turned off.

[0022] In some embodiments, the sensor is used to detect the distance between the near-eye display module and others, and the processor is also used to: obtain the distance between the near-eye display module and others; determine whether the distance is greater than a preset distance; if the distance is greater than the preset distance, turn off the local color change module, and if the distance is less than or equal to the preset distance, turn on the local color change module.

[0023] In some embodiments, the sensor is also used to detect facial features of others, and the processor is also used to: obtain facial features of others; determine whether the facial features meet preset features; if so, prompt the user or turn on the local color change module.

[0024] The embodiment of the present application further provides a display compensation method for a near-eye display device, which is applied to the above-mentioned near-eye display device; the display compensation method for the near-eye display device comprises:

[0025] Generate image data;

[0026] According to the image data, the optical machine is driven to generate an image signal, and the image signal is transmitted through the optical component and emitted from the exit pupil area into the human eye to form a virtual picture in front of the human eye;

[0027] Driving the local color changing module according to the image data to form a local color changing area;

[0028] Wherein, the orthographic projection of the local color-changing area on the near-eye display module at least partially overlaps with the exit pupil area.

[0029] An embodiment of the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the display compensation method for the near-eye display device when executing the computer program.

[0030] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the display compensation method for the near-eye display device are implemented.

[0031] The near-eye display device provided in the embodiment of the present application includes a near-eye display module, a local color-changing module and a processor. The near-eye display module includes an optical machine and an optical component. The near-eye display module has an exit pupil area. The light generated by the optical machine is transmitted through the optical component and enters the human eye from the exit pupil area, forming a virtual picture in front of the human eye. The light of the external environment also enters the human eye at the same time, so that the user perceives the ingenious fusion of the virtual picture and the real scene. The local color-changing module is arranged on the near-eye display module. The local color-changing module can form a local color-changing area. The positive projection of the local color-changing area on the near-eye display module overlaps with the exit pupil area at least partially, providing display compensation for the virtual picture to increase the contrast between the virtual picture and the real scene, so that the virtual picture can be clearly displayed; and through the shielding of the local color-changing area, others cannot peek at the content of the virtual picture from the front of the user, so the near-eye display device can also prevent the leakage of user privacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of an application of a near-eye display device provided in an embodiment of the present application.

[0034] Figure 2 A first structural schematic diagram of a near-eye display device provided in an embodiment of the present application.

[0035] Figure 3 A schematic diagram of a scene of a near-eye display device provided in an embodiment of the present application.

[0036] Figure 4 A schematic diagram of the first structure of the local color changing module provided in an embodiment of the present application.

[0037] Figure 5 A second structural schematic diagram of the near-eye display device provided in an embodiment of the present application.

[0038] Figure 6 A schematic diagram of the structure of the electrochromic layer provided in an embodiment of the present application.

[0039] Figure 7 A second structural schematic diagram of the local color changing module provided in an embodiment of the present application.

[0040] Figure 8 A third structural schematic diagram of the local color changing module provided in an embodiment of the present application.

[0041] Fig. 9 A schematic flow chart of a display compensation method for a near-eye display device provided in an embodiment of the present application.

[0042] Fig.10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0044] The embodiment of the present application provides a near-eye display device and a display compensation method thereof, an electronic device, and a storage medium. The near-eye display device refers to a wearable intelligent electronic terminal device with an augmented reality function that can clearly display real scenes and virtual images, including intelligent AR glasses and head-mounted displays (HMD), etc. The following takes the near-eye display device as an example of AR glasses, and describes a specific application in conjunction with the accompanying drawings.

[0045] See also Figure 1 , Figure 1 A schematic diagram of an application of a near-eye display device provided in an embodiment of the present application.

[0046] A user wearing a near-eye display device 100, such as AR glasses, can receive natural light from the real scene 1 through optical components, or can receive image signals from an optical machine through optical components to present a virtual picture, thereby observing an augmented reality field of view in which the virtual picture 200 is integrated with the real scene 1.

[0047] See also Figure 2 , Figure 2 A schematic diagram of the first structure of a near-eye display device provided in an embodiment of the present application. The near-eye display device 100 of an embodiment of the present application, such as AR glasses, is to achieve the effect of combining virtuality and reality and enhancing display. The near-eye display device 100 may include necessary components of traditional glasses such as temples 2 and frames 3. In addition, it also includes at least a processor 30, a near-eye display module 10, a local color change module 20 and other components. The near-eye display module 10 includes an optical machine 11 and an optical component. The optical machine and the optical component can be set in the frame 3 or in the temple 2. The near-eye display module 10 may also include a lens 4, and the optical component can be set on the lens 4.

[0048] The optical component is used for imaging. On the one hand, the pixels on the optical machine form a virtual image in the distance and project it into the user's eyes. On the other hand, the light of the real scene 1 is transmitted to the user's eyes, that is, the virtual picture 200 is integrated with the real scene 1. The processor 30 is used to receive instructions, process data, and control other components. The local color-changing module 20 is used to block the light of the virtual information display from the optical machine from leaking to the other side of the glasses opposite to the user, so as to prevent others from seeing the virtual picture 200 from the front or side of the user.

[0049] The lens 4 may be a vision corrective lens or a non-corrective lens, examples of which include prescription glasses, bifocal glasses, reading glasses, driving glasses or progressive glasses; examples of which include sunglasses, adapter glasses, safety glasses, sports glasses, swimming masks or goggles or ski goggles.

[0050] The near-eye display device 100 may also include wraparound glasses (with wraparound lenses), adaptable glasses, or auxiliary frames (attached to existing temples 2). Furthermore, the near-eye display device 100 may include a fastening strap for fixing, such as a fastening strap for fixing the near-eye display device 100 on the user's head.

[0051] In one embodiment, the near-eye display device 100 includes a sensor, a circuit, and an output device. The glasses may also include one or both of a lithium battery and a solar cell to provide power to the circuit and possible other components. Furthermore, the glasses may also include a communication module such as a WIFI module, a Bluetooth module, a 5G module, etc., so that the glasses have the ability to communicate with the outside world.

[0052] Specifically, the near-eye display device 100 provided in the present application includes a near-eye display module 10 , a local color change module 20 and a processor 30 .

[0053] The near-eye display module 10 includes an optical machine and an optical component. The near-eye display module 10 has an exit pupil area. The exit pupil area refers to the area on the near-eye display module 10 that can be directly entered into the human eye after being passed through by light. When the near-eye display module 10 satisfies the optical waveguide solution, the exit pupil area refers to the area where light is coupled out from the waveguide substrate, i.e., the outcoupling area; when the near-eye display module 10 satisfies the lens solution, the exit pupil area refers to the area on the lens where light passes after being acted upon by the lens. The embodiment of the present application takes the near-eye display device 100 satisfying the optical waveguide solution as an example.

[0054] The light emitted by the optical machine is projected into the user's eyes through the exit pupil area so that the user believes that a virtual screen 200 (such as text or a picture or a combination of text and picture) is formed in front of the user. For example, the virtual screen 200 can be explanatory text, information labels, or animated portraits. Similarly, the optical component can also allow the light of the real scene 1 to enter the human eye, so that the user perceives that the virtual screen 200 is integrated with the real scene 1, such as providing a text explanation of the real scene 1, real-time translation, etc.

[0055] The optical machine is composed of a micro display screen and a lens. The micro display screen can be a Micro-Led screen, a Micro-Oled screen, an LCOS screen, etc., and the lens can be a Fresnel lens.

[0056] The optical component is used for imaging. On the one hand, the pixels on the optical machine form a virtual image in the distance and project it into the user's eyes. On the other hand, the light of the real scene 1 is transmitted to the user's eyes, that is, the virtual image is integrated with the real scene 1. The optical component can be a diffraction optical waveguide. The local color-changing module 20 is arranged on the near-eye display module 10.

[0057] The local color-changing module 20 can be integrally formed with the optical module, or the optical component can be connected to the local color-changing module 20 in a fitting manner. Specifically, the local color-changing module 20 can be arranged on the side of the optical component away from the human eye. The shape of the local color-changing module 20 can be consistent with the shape of the optical component, or it can be designed according to needs. However, the area of ​​the local color-changing region 300 in the local color-changing module 20 is smaller than the entire area of ​​the local color-changing module 20. It can be understood that the light of the real scene 1 first passes through the local color-changing module 20, then passes through the optical component, and finally enters the user's human eye. Therefore, the local color-changing module 20 needs to allow the light of the real scene 1 to pass through, and also needs to generate a background color for the virtual picture 200 to enhance the contrast between the virtual picture 200 and the real scene 1. In order to achieve this effect, a local color-changing region 300 and a transparent region can be formed on the local color-changing module 20, and the transmittance of the local color-changing region 300 is less than the transmittance of the transparent region. The orthographic projection of the local color-changing area 300 on the near-eye display module 10 at least partially overlaps with the exit pupil area to set off the virtual image 200, so as to enhance the contrast between the virtual image 200 and the real scene 1. The transparent area can pass the light of the real scene 1 and will not block the real scene 1 that the user wants to see.

[0058] It is worth noting that, in order to provide compensation for the virtual screen 200, the local color changing area 300 changes dynamically. In other words, the local color changing area 300 changes dynamically with the display of the virtual screen 200. That is, when the size or position of the virtual screen 200 changes, the size or position of the local color changing area 300 also changes accordingly.

[0059] The processor 30 is electrically connected to the optical machine and the local color-changing module 20, and the processor 30 is a part of the electronic circuit, electronic components and circuit board of the near-eye display device 100. The processor 30 is used to generate image data. On the one hand, the optical machine is driven to generate an image signal according to the image data, and the image signal is transmitted to the human eye through the optical component to form a virtual picture 200; on the other hand, the local color-changing module 20 is driven according to the image data to form a local color-changing area 300, and the positive projection of the local color-changing area 300 on the near-eye display module 10 overlaps with the exit pupil area at least partially, so as to at least improve the contrast between part of the virtual picture 200 and the real scene 1, that is, the content of the virtual picture 200 can be blocked to prevent others from peeping. It is worth noting that the positive projection direction is the horizontal direction when the user normally observes the front field. The image signal refers to the light signal carrying the image data. The meaning of the local color-changing area 300 blocking part of the virtual picture 200 is to block the virtual light from entering the eyes of others.

[0060] It is understandable that the processor 30 drives the optical machine and the local color change module 20 at the same time, so that the local color change area 300 dynamically follows the changes of the virtual picture 200 to provide real-time compensation for the virtual picture 200. The projection of the local color change area 300 on the near-eye display module 10 can completely overlap with the exit pupil area, or it can also overlap partially. The local color change area 300 has color, which is equivalent to providing a background for the virtual picture 200 to compensate for the virtual picture 200, increase the contrast between the edge of the virtual picture 200 and the real scene 1, so that the virtual picture 200 can be clearly displayed. The near-eye display device 100 can also prevent user privacy leakage. For example, please refer to Figure 3 , Figure 3 A schematic diagram of a scene of a near-eye display device provided in an embodiment of the present application. The virtual screen 200 is a person image, and the local discoloration area 300 is a black background corresponding to the outline of the person image, so as to increase the contrast between the person image and the real scene 1; due to the occlusion of the local discoloration area 300, others cannot see the specific content of the virtual screen 200 (specific details of the person image) from the front or side of the user, further protecting the user's privacy. It can be understood that the front or side mentioned here refers to the other direction relative to the glasses on one side of the user.

[0061] As Figure 3The projection of the local color-changing area 300 on the near-eye display module 10 covers the exit pupil area. For users wearing glasses, the virtual picture 200 can be fully highlighted, and the contrast between the virtual picture 200 and the real scene 1 is increased, making the virtual picture 200 more complete and realistic. The light from the optical machine leaked from the optical component cannot be completely transmitted due to the blocking of the local color-changing area 300. Others can only see the outline of the virtual picture 200 but cannot see the details and content clearly, so the privacy of the user can be better protected.

[0062] In the above embodiment, in order to realize the local color change requirement of the local color change module 20, it is necessary to change the transmittance of the local color change module 20. That is to say, the local color change module 20 includes a local color change area 300 and a transparent area, and the transmittance of the local color change area 300 is less than the transmittance of the transparent area, and then when the local color change area 300 partially overlaps with the exit pupil area, the virtual picture 200 is more prominent, the contrast is enhanced, and the risk of privacy leakage is reduced.

[0063] To change the light transmittance of the local color changing module 20, please refer to Figure 4 , Figure 4 A schematic diagram of the first structure of a local color changing module provided in an embodiment of the present application. The local color changing module 20 includes an electrode layer 21 and an electrochromic layer 22, the electrode layer 21 is connected to the electrochromic layer 22, the electrochromic layer 22 is arranged on the near-eye display module 10, and the processor 30 is electrically connected to the electrode layer 21. The processor 30 is used to drive the electrode layer 21 according to the image data, so that the electrode layer 21 drives the electrochromic layer 22 to form a local color changing area 300.

[0064] The electrode layer 21 can be a transparent conductive material, such as indium tin oxide, aluminum-doped zinc oxide, conductive polymers and nanomaterials. The electrochromic layer 22 needs to realize the property that the transmittance and reflectivity of light can be reversibly changed under the action of an external electric field. The material of the electrochromic layer 22 can be inorganic transition metal oxides such as WO3, NiO, and IrO; in addition, the material can also be organic compounds such as viologens, polyaniline, and lanthanide phthalocyanine; or the material can also be a liquid crystal material.

[0065] In some embodiments, see Figure 5 , Figure 5A second structural schematic diagram of a near-eye display device provided in an embodiment of the present application. The local color-changing module 20 also includes a light-emitting driver 50, which is respectively connected to the electrode layer 21 and the processor 30, and the processor 30 is used to transmit image data to the light-emitting driver 50, and the light-emitting driver 50 is used to generate a control signal according to the image data, and control the electrode layer 21 according to the control signal to drive the electrochromic layer 22 to form a local color-changing area 300. The electrode layer 21 can be controlled by the control signal to achieve dynamic partitioning and control the transmittance of the electrochromic layer 22, thereby achieving compensation for the virtual picture 200. In some embodiments, the light-emitting driver can drive multiple control electrodes on the electrode layer 21 to dynamically control the transmittance of the electrochromic layer 22.

[0066] The light-emitting driver 50 may be a MCU (Microcontroller Unit). Through the linkage between the light-emitting driver 50 and the processor 30 , part of the calculation and control signal functions on the processor 30 may be transferred to the light-emitting driver 50 to reduce the amount of calculation of the processor 30 .

[0067] See also Figure 6 , Figure 6 A schematic diagram of the structure of the electrochromic layer provided in an embodiment of the present application. The electrochromic layer 22 can be divided into a plurality of color-changing units 221. Each color-changing unit 221 can be switched between a transparent state and an opaque state under the action of the electrode layer 21. When the color-changing unit 221 is in a transparent state, the transmittance of the color-changing unit 221 can be 100% or close to 100% (for example, greater than 99% or greater than 95%). When the color-changing unit 221 is in an opaque state, the transmittance of the color-changing unit 221 can be 0% or close to 0% (for example, less than 1% or less than 5%). The electrode layer 21 can also change the voltage applied to the electrochromic layer 22 so that the light transmittance of the electrochromic layer 22 is any transmittance value between 0% and 100%.

[0068] Specifically, the electrochromic layer 22 is divided into N color-changing units 221 distributed in an array, and the processor 30 is used to drive M color-changing units 221 to emit light to form a local color-changing area 300; wherein N≥M, N and M are positive integers. It can be understood that the transmittance of the M color-changing units 221 is changed accordingly according to the image data, thereby realizing partial light emission of the electrochromic layer 22. The electrode layer 21 drives a part of the color-changing units 221 from a transparent state to an opaque state, thereby forming a local color-changing area 300 corresponding to the virtual screen 200. Since the virtual screen 200 is composed of multiple pixels, the electrode layer 21 is correspondingly divided into N pairs of control electrodes, each pair of control electrodes corresponds to a color-changing unit 221, and then each color-changing unit 221 is individually controlled to realize that the local color-changing area 300 follows the dynamic display change of the virtual screen 200. Since the virtual screen 200 is composed of multiple pixels, the size of the color-changing unit 221 can reach the pixel level accordingly, that is, the virtual screen 200 includes multiple pixels, and the multiple color-changing units 221 correspond one-to-one to the multiple pixels of the virtual screen 200, so that the local color-changing area 300 composed of the multiple color-changing units 221 blocks the virtual screen 200 more closely and accurately, and does not block the real scene 1, thereby bringing a better user experience to the user.

[0069] Among them, the electrode layer 21 drives the electrochromic layer 22 to form the local color-changing area 300 in a passive matrix drive (Passive Matrix, PM) or an active matrix drive (Active Matrix, AM). The passive matrix drive is to drive each color-changing unit 221 to emit light instantly with high brightness under the action of a short pulse mode, that is, to achieve dynamic switching of the transparency of each color-changing unit 221 between 0% and 100%, and the advantage is low cost. The active matrix drive is to drive each color-changing unit 221 to emit light continuously and independently, that is, to achieve linear dynamic switching of the transparency of each color-changing unit 221 between 0% and 100%, and the advantages are low driving voltage and long life of the light-emitting element.

[0070] The color changing unit can also be Micro-LED (Micro Light Emitting Diode Display), OLED (Organic Light-Emitting Diode), DLP (Digital Light Processing), LCoS (Liquid Crystal On Silicon), etc.

[0071] Please continue to read Figure 4 as well as Figure 7 , Figure 7This is a schematic diagram of the second structure of the local color changing module provided in the embodiment of the present application. The electrode layer 21 can be a single-layer structure or a multi-layer structure. Figure 4 When the electrode layer 21 is a single-layer structure, the electrode layer 21 is arranged on one side of the electrochromic layer 22. The single-layer structure is simpler, lighter, and easier to prepare. Figure 7 When the electrode layer 21 is a double-layer structure, the electrode layer 21 includes a first sub-electrode layer 211 and a second sub-electrode layer 212, and the first sub-electrode layer 211 and the second sub-electrode layer 212 are respectively arranged on both sides of the electrochromic layer 22. The light of the real scene 1 passes through the first sub-electrode layer 211, the electrochromic layer 22, the second sub-electrode layer 212 and the near-eye display module 10 in sequence and enters the user's human eyes. The double-layer structure makes the force on the electrochromic layer 22 more balanced and the control of the two sides of the electrochromic layer 22 more accurate. Further, when the electrode layer 21 is divided into N pairs of control electrodes, each pair of control electrodes includes a first control electrode and a second control electrode. The first control electrode can be arranged on the first sub-electrode layer 211, and the second control electrode can be arranged on the second sub-electrode layer 212.

[0072] Please continue to read Figure 7 The local color-changing module 20 further includes a first base layer 23 and a second base layer 24. The first base layer 23 is arranged on a side of the first sub-electrode layer 211 away from the electrochromic layer 22, and the second base layer 24 is arranged on a side of the second sub-electrode layer 212 away from the electrochromic layer 22. The first base layer 23 is used to protect the first sub-electrode layer 211, and the second base layer 24 is used to protect the second sub-electrode layer 212. The first base layer 23 and the second base layer 24 are transparent base layers, and the shapes of the first base layer 23 and the second base layer 24 are the same. A first optical adhesive layer is arranged between the first base layer 23 and the first sub-electrode layer 211, and the first optical adhesive layer is distributed along the edge of the first base layer 23 and forms a ring structure. The first optical adhesive layer can be used to fix the relative position between the first base layer 23 and the first sub-electrode layer 211. The first optical adhesive layer can be OCA (Optically Clear Adhesive) dry adhesive, OCA liquid adhesive or transparent hot melt adhesive. Likewise, a second optical adhesive layer is disposed between the second base layer 24 and the second sub-electrode layer 212 . The shape and connection method of the second optical adhesive layer are the same as those of the first optical adhesive layer, and are not described in detail herein.

[0073] In the near-eye display device 100 provided in the embodiment of the present application, after receiving the image data, the processor 30 of the near-eye display device 100 is also used to determine whether the image data includes sensitive information; if the image data includes sensitive information, the orthographic projection of the local color-changing area 300 on the near-eye display module 10 partially overlaps with the exit pupil area to block the virtual screen 200 corresponding to the sensitive information. The sensitive information may be a personal identification number, a student number, a work number, a medical record and / or an address, etc. The processor 30 may determine which of the current virtual information is sensitive information by receiving an interactive instruction to identify the user at the current moment, or may determine which of the current virtual information is sensitive information by analyzing and interpreting the virtual information and querying the sensitive information range pre-set by the system; after determining the sensitive information, the processor 30 is also used to determine the display position of the sensitive information on the virtual screen 200, and then determine the local color-changing area 300 corresponding to the display position of the sensitive information. The local color-changing area 300 may partially or completely overlap the sensitive information to protect user privacy. For example, if the sensitive information is a personal identification number, the orthographic projection of the local color-changing area 300 on the near-eye display module 10 can completely block the sensitive information in the virtual image 200, or can only block the last six digits of the personal identification number.

[0074] On the basis of the above embodiment, if the image data also includes non-sensitive information. The processor 30 is further used to divide the local color change area 300 into at least a first sub-area and a second sub-area, the first sub-area is used to shield the virtual screen 200 corresponding to the sensitive information, and the second sub-area is used to shield the virtual screen 200 corresponding to the non-sensitive information. The transmittance of the first sub-area is less than or equal to the transmittance of the second sub-area. In the embodiment of the present application, the transmittance refers to the ratio of the ambient light transmitted.

[0075] This can not only prevent others from seeing the virtual information from the front or side, protect privacy, but also take into account the contrast, which helps users see the content clearly. Therefore, by setting different transmittances for different content, it can not only take into account the improvement of the contrast with the real scene 1 to improve the user's viewing experience, but also prevent the user's privacy from being leaked.

[0076] In some embodiments, see Figure 8 , Figure 8A third structural schematic diagram of a local color change module provided in an embodiment of the present application. The near-eye display device 100 in the embodiment of the present application also includes a sensor 60, which is used to detect current scene information. The sensor 60 is electrically connected to the processor 30. Before the processor 30 is used to drive the local color change module 20 according to the image data, the processor 30 is also used to obtain the current scene information and determine whether the scene information meets the start-up conditions of the local color change module 20. If the current scene information meets the start-up conditions of the local color change module 20, the local color change module 20 is turned on; if the current scene does not meet the start-up conditions of the local color change module 20, the local color change module 20 is turned off.

[0077] For example, the sensor 60 may be a speed sensor. The speed sensor may detect whether the user is stationary, walking slowly, running, or driving. If the processor 30 determines that the user is stationary or walking slowly based on the measured value of the speed sensor being less than a preset value, the local color changing module 20 is turned on; if the processor 30 determines that the user is running or driving based on the measured value of the speed sensor being greater than a second preset value, the local color changing module 20 is turned off.

[0078] For another example, the sensor 60 can be used to detect the distance between the near-eye display module 10 and others. The processor 30 is also used to: obtain the distance between the near-eye display module 10 and others, determine whether the distance is within a preset distance, and if the distance is greater than the preset distance, turn off the local color change module 20; if the distance is less than or equal to the preset distance, turn on the local color change module 20. It can be understood that since the virtual screen 200 on the near-eye display module 10 is small, if the distance between others and the user is large, the virtual screen 200 cannot be seen clearly, so there is no need to turn on the local color change module 20, so the local color change module 20 can be dynamically opened and closed according to the distance between the user and others to save energy.

[0079] For example, when the distance between the near-eye display module 10 and others is greater than 5 meters, the local color change module 20 is turned off; when the distance between the near-eye display module 10 and others is less than or equal to 5 meters, the local color change module 20 is turned on.

[0080] The sensor 60 can also be used to detect facial features of others, and the processor 30 is also used to: obtain facial features of others; determine whether the facial features meet the preset features; if they meet, prompt the user or turn on the local color change module 20.

[0081] The preset features may be expressions of people such as surprise or embarrassment. When the user forgets to turn on the local color change module 20 and the local color change module 20 is displaying sensitive information, the processor 30 may identify whether others have seen the private message based on the facial features of others collected by the sensor 60, and then immediately prompt the user or automatically turn on the local color change module 20. The processor 30 may prompt the user by vibration, virtual screen color change, etc., or may communicate to other mobile devices such as mobile phones, watches, iPads, and computers to let the user know. The near-eye display device 100 in the present application can recognize that the user has forgotten to turn on the local color change module 20 based on the reactions of others, and promptly prompt the user or automatically turn on the local color change module 20 to avoid leakage of the user's privacy.

[0082] In some embodiments, the processor 30 can regulate the local color-changing module 20 of the near-eye display device 100 according to a preset time period. For example, the local color-changing module 20 of the processor 30 is turned on from 9:00 to 18:00 on weekdays (Monday to Friday), and is turned off at other times; the local color-changing module 20 of the processor 30 is turned on from 11:00 to 14:00 every day, and is turned off at other times.

[0083] The storage module of the near-eye display device 100 has multiple modes, each of which corresponds to a different time period and / or location. The user can select different modes according to their needs, and the processor 30 controls the local color-changing module 20 of the near-eye display device 100 according to the mode selected by the user. For example, the first mode is the working mode, which means that the local color-changing module 20 is turned on from 9:00 to 18:00 from Monday to Friday and when arriving at the designated location (company); the second mode is the leisure mode, which means that the local color-changing module 20 is turned on immediately after the user leaves the designated location (home) from Saturday to Sunday. After the user selects this mode, the processor 30 can control the opening or closing of the local color-changing module 20 according to the current time or location to avoid manual operation by the user, and can also better meet the user's usage needs.

[0084] In some embodiments, the optical component is provided with an outcoupling area (exit pupil area), and the light of the optical machine in the light glasses of the real scene 1 enters the human eye through the outcoupling area. In order to prevent the local color changing area 300 from blocking the user's line of sight, the local color changing area 300 can be set only in a part of the display area. For example, the local color changing area 300 acts on the surrounding, upper, lower, left and right parts of the display area. The user can set the position, area and / or color of the local color changing area 300 according to needs or preferences, and can also rely on the processor 30 to adjust it according to user preferences.

[0085] See also Fig. 9 , Fig. 9A flow chart of a display compensation method for a near-eye display device provided in an embodiment of the present application. The present application also provides a display compensation method for a near-eye display device, which is applied to the above-mentioned near-eye display device 100 and includes the following steps.

[0086] S1. Generate image data.

[0087] S2. Drive the optical machine to generate an image signal according to the image data. The image signal is transmitted through the optical component and enters the human eye from the exit pupil area, forming a virtual picture 200 in front of the human eye.

[0088] S3. Drive the local color changing module 20 according to the image data to form a local color changing area 300.

[0089] The orthographic projection of the local color-changing area 300 on the near-eye display module 10 at least partially overlaps with the virtual image 200 .

[0090] On the one hand, the optical machine is driven according to the image data to generate an image signal, and the image signal enters the human eye through the optical component to form a virtual picture 200; on the other hand, the local color-changing module 20 is driven according to the image data to form a local color-changing area 300, and the orthographic projection of the local color-changing area 300 on the near-eye display module 10 overlaps at least partially with the exit pupil area, so as to at least improve the contrast between part of the virtual picture 200 and the real scene 1, that is, the content of the virtual picture 200 can be blocked to prevent others from peeping. It is worth noting that the orthographic projection direction is the horizontal direction when the user normally observes the front field of view. The image signal refers to the light signal carrying the image data. The meaning of the local color-changing area 300 blocking part of the virtual picture 200 is to block the virtual light from entering the eyes of others.

[0091] It can be understood that in the display compensation method, the optical machine and the local color change module 20 are driven simultaneously, so that the local color change area 300 dynamically follows the changes of the virtual screen 200 to provide real-time compensation for the virtual screen 200. The projection of the local color change area 300 on the near-eye display module 10 can completely overlap with the edge of the virtual screen 200, or it can also overlap partially. The local color change area 300 has color, which is equivalent to providing a background for the virtual screen 200 to provide compensation for the virtual screen, increase the contrast between the edge of the virtual screen 200 and the real scene 1, so that the virtual screen 200 can be clearly displayed. The near-eye display device 100 can also prevent user privacy leakage. Please continue to refer to Figure 3, the virtual screen 200 is a person image, and the local color-changing area 300 is a black background corresponding to the outline of the person image, so as to increase the contrast between the person image and the real scene 1; due to the occlusion of the local color-changing area 300, others cannot see the specific content of the virtual screen 200 (specific details of the person image) from the front or side of the user, further protecting the user's privacy. It can be understood that the front or side mentioned here refers to the other direction relative to the glasses on one side of the user.

[0092] In some embodiments, the local color changing module 20 includes an electrode layer 21 and an electrochromic layer 22, the electrode layer 21 is electrically connected to the electrochromic layer 22, and the electrochromic layer 22 is disposed on the near-eye display module 10. In the step of driving the local color changing module 20 according to the image data to form the local color changing area 300, the display compensation method of the near-eye display device further includes driving the electrode layer 21 according to the image data to drive the electrochromic layer 22 to form the local color changing area 300.

[0093] The color changing unit 221 can be switched between a transparent state and an opaque state by the action of the electrode layer 21. When the color changing unit 221 is in a transparent state, the transmittance of the color changing unit 221 can be 100% or close to 100% (for example, greater than 99% or greater than 95%). When the color changing unit 221 is in an opaque state, the transmittance of the color changing unit 221 can be 0% or close to 0% (for example, less than 1% or less than 5%). The electrode layer 21 can also change the voltage applied to the electrochromic layer 22 so that the light transmittance of the electrochromic layer 22 is a transmittance value between 0% and 100%. The electrode layer 21 drives a partial area of ​​the electrochromic layer 22 to change from a transparent state to an opaque state, thereby forming a local color changing area 300 corresponding to the virtual screen 200.

[0094] In some embodiments, the local color-changing module 20 further includes a light-emitting driver 50, which is connected to the electrode layer 21. The display compensation method of the near-eye display device further includes transmitting image data to the light-emitting driver 50, and the light-emitting driver 50 is used to generate a control signal according to the image data, and control the electrode layer 21 according to the control signal to drive the electrochromic layer 22 to emit light. By setting the electrode layer 21 to be controlled by the control signal, the transmittance of the electrochromic layer 22 can be dynamically regulated by the partition, thereby realizing compensation for the virtual picture 200.

[0095] In some embodiments, after receiving the image data, the display compensation method of the near-eye display device also includes determining whether the image data includes sensitive information; if the image data includes sensitive information, the orthographic projection of the local color change area 300 on the near-eye display module 10 partially overlaps with the exit pupil area to block the virtual screen 200 corresponding to the sensitive information.

[0096] The sensitive information may be a personal identification number, student ID number, work ID number, medical records and / or address, etc.

[0097] By receiving and identifying the user's interactive instructions at the current moment, it is determined which of the current virtual information is sensitive information. It is also possible to analyze and interpret the virtual information, query the system's pre-set sensitive information range, and determine which is sensitive information; after determining the sensitive information, determine the display position of the sensitive information on the virtual screen 200, and then determine the local color-changing area 300 corresponding to the display position of the sensitive information. The local color-changing area 300 may partially or completely overlap the sensitive information to protect user privacy. For example, the sensitive information is a personal identification number, and the orthographic projection of the local color-changing area 300 on the near-eye display module 10 may completely block the sensitive information in the virtual screen 200, or may only block the last six digits of the personal identification number.

[0098] This can not only prevent others from seeing the virtual information from the front or side, protect privacy, but also take into account the contrast, which helps users see the content clearly. Therefore, by setting different transmittances for different content, it can not only take into account the improvement of the contrast with the real scene 1 to improve the user's viewing experience, but also prevent the user's privacy from being leaked.

[0099] In some embodiments, the near-eye display device 100 also includes a sensor 60, which is used to detect current scene information. Before driving the local color change module 20 according to the image data, the display compensation method of the near-eye display device also includes obtaining the current scene information and determining whether the scene information meets the activation condition of the local color change module 20; if so, turning on the local color change module 20; if not, turning off the local color change module 20.

[0100] The sensor 60 can be used to detect the distance between the near-eye display module 10 and another person. The display compensation method of the near-eye display device also includes obtaining the distance between the near-eye display module 10 and another person; determining whether the distance is greater than a preset distance; if the distance is greater than the preset distance, turning off the local color-changing module 20; if the distance is less than or equal to the preset distance, turning on the local color-changing module 20.

[0101] Among them, the sensor 60 can be used to detect facial features of others. The display compensation method of the near-eye display device also includes obtaining facial features of others; determining whether the facial features meet preset features; if so, prompting the user or turning on the local color change module 20.

[0102] See also Fig.10 , Fig.10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0103] The electronic device includes a processor 401, a memory 402, and a computer program stored in the memory 402 and executable on the processor 401. When the processor 401 executes the computer program, the steps in the display compensation method of the near-eye display device are implemented.

[0104] The electronic device may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will appreciate that Fig.10 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0105] The processor 401 is the control center of the electronic device, and uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 402, and calling data stored in the memory 402, the processor 401 performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 401.

[0106] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0107] The electronic device also includes a power supply 403 for supplying power to each component. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. The power supply 403 can also include one or more DC or AC power supplies, recharging systems, power supply device debugging circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0108] The electronic device may further include an input unit 404, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0109] Although not shown, the electronic device may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 401 in the electronic device will load the executable file corresponding to the process of one or more application programs into the memory 402 according to the following instructions, and the processor 401 will run the application program stored in the memory 402, thereby implementing the steps in the display compensation method of any near-eye display device provided in the embodiments of the present application.

[0110] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0111] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0112] To this end, the embodiment of the present application provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by the processor 30 to implement the following functions: generating image data; driving the optical machine to generate an image signal according to the image data, and the image signal is transmitted from the exit pupil area to the human eye through the propagation of the optical component, and a virtual picture 200 is formed in front of the human eye; driving the local color change module 20 according to the image data to form a local color change area 300. The orthographic projection of the local color change area 300 on the near-eye display module 10 at least partially overlaps with the virtual picture 200.

[0113] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0114] The storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0115] Since the instructions stored in the storage medium can execute the steps in the display compensation method of any near-eye display device provided in the embodiments of the present application, the beneficial effects that can be achieved by the display compensation method of any near-eye display device provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0116] The near-eye display device 100 provided in the embodiment of the present application includes a near-eye display module 10, a local color change module 20 and a processor 30. The near-eye display module 10 includes an optical machine and an optical component. The near-eye display module 10 has an exit pupil area. The light generated by the optical machine is transmitted through the optical component and enters the human eye from the exit pupil area, forming a virtual picture 200 in front of the human eye. The light of the virtual picture 200 and the light of the external environment enter the human eye, so that the user perceives the ingenious fusion of the virtual picture 200 and the real scene 1. The local color-changing module 20 is arranged on the near-eye display module 10. The local color-changing module 20 can form a local color-changing area 300. The orthographic projection of the local color-changing area 300 on the near-eye display module 10 at least partially overlaps with the exit pupil area, providing display compensation for the virtual picture 200 to increase the contrast between the virtual picture 200 and the real scene 1, so that the virtual picture 200 can be displayed completely and clearly; and, through the obstruction of the local color-changing area 300, others cannot peek into the content of the virtual picture 200, so the near-eye display device 100 can also prevent user privacy leakage.

[0117] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0118] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0119] The near-eye display device and display compensation method, electronic device and storage medium provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and scope of application. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A near-eye display device, characterized in that: include: A near-eye display module, the near-eye display module comprising an optical machine and an optical component, the near-eye display module having an exit pupil area; A local color-changing module, wherein the local color-changing module is arranged on the near-eye display module, the local color-changing module comprises an electrode layer and an electrochromic layer, the electrode layer is electrically connected to the electrochromic layer, and the electrochromic layer is arranged corresponding to the exit pupil area; the electrochromic layer comprises N color-changing units distributed in an array, the electrode layer is divided into N pairs of control electrodes, each pair of the control electrodes corresponds to one color-changing unit, so as to control each color-changing unit separately; A processor, the processor is electrically connected to the optical machine, the local color-changing module and the electrochromic layer, and the processor is used to: Generate image data; According to the image data, the optical machine is driven to generate an image signal, and the image signal is transmitted through the optical component and emitted from the exit pupil area into the human eye, so as to form a virtual picture in front of the human eye, wherein the virtual picture includes a plurality of pixels, and the plurality of color-changing units correspond to the plurality of pixels one by one; According to the image data, driving M color-changing units to emit light to form a local color-changing area, N≥M, N and M are positive integers, and the local color-changing area changes dynamically with the display of the virtual picture; Determining whether the image data includes sensitive information; If the image data includes sensitive information and non-sensitive information, the local color-changing area is divided into at least a first sub-area and a second sub-area, the first sub-area is used to shield the virtual picture corresponding to the sensitive information, the second sub-area is used to shield the virtual picture corresponding to the non-sensitive information, and the transmittance of the first sub-area is less than or equal to the transmittance of the second sub-area; The orthographic projection of the local color-changing area on the near-eye display module at least partially overlaps with the exit pupil area, and the projection of the local color-changing area on the near-eye display module at least partially overlaps with the edge of the virtual picture.

2. The near-eye display device according to claim 1, characterized in that: The local color change module also includes a light-emitting driver, which is connected to the electrode layer and the processor respectively. The processor is used to transmit the image data to the light-emitting driver, and the light-emitting driver is used to generate a control signal according to the image data, and control the electrode layer according to the control signal to drive the electrochromic layer to form a local color change area.

3. The near-eye display device according to claim 1, characterized in that: The electrode layer includes a first sub-electrode layer and a second sub-electrode layer, and the first sub-electrode layer and the second sub-electrode layer are respectively arranged on both sides of the electrochromic layer.

4. The near-eye display device according to any one of claims 1 to 3, characterized in that: The projection of the local color changing area on the near-eye display module covers the exit pupil area.

5. The near-eye display device according to any one of claims 1 to 3, characterized in that: It also includes a sensor, which is used to detect current scene information and is electrically connected to the processor; before driving the local color change module according to the image data, the processor is also used to obtain current scene information and determine whether the scene information meets the activation condition of the local color change module; if so, the local color change module is activated; if not, the local color change module is deactivated.

6. The near-eye display device according to claim 5, characterized in that: The sensor is used to detect the distance between the near-eye display module and others, and the processor is also used to: obtain the distance between the near-eye display module and others; determine whether the distance is greater than a preset distance; if the distance is greater than the preset distance, turn off the local color change module, and if the distance is less than or equal to the preset distance, turn on the local color change module.

7. The near-eye display device according to claim 5, characterized in that: The sensor is also used to detect facial features of others, and the processor is also used to: obtain facial features of others; determine whether the facial features meet preset features; if they meet, prompt the user or turn on the local color change module.

8. A display compensation method for a near-eye display device, characterized in that: Applicable to the near-eye display device according to any one of claims 1 to 7; The display compensation method of the near-eye display device comprises: Generate image data; According to the image data, the optical machine is driven to generate an image signal, and the image signal is transmitted through the optical component and emitted from the exit pupil area into the human eye, so as to form a virtual picture in front of the human eye, wherein the virtual picture includes a plurality of pixels, and the plurality of color-changing units correspond to the plurality of pixels one by one; According to the image data, driving M color-changing units to emit light to form a local color-changing area, N≥M, N and M are positive integers, and the local color-changing area changes dynamically with the display of the virtual picture; Determining whether the image data includes sensitive information; If the image data includes sensitive information and non-sensitive information, the local color-changing area is divided into at least a first sub-area and a second sub-area, the first sub-area is used to shield the virtual picture corresponding to the sensitive information, the second sub-area is used to shield the virtual picture corresponding to the non-sensitive information, and the transmittance of the first sub-area is less than or equal to the transmittance of the second sub-area; The orthographic projection of the local color-changing area on the near-eye display module at least partially overlaps with the exit pupil area, and the projection of the local color-changing area on the near-eye display module at least partially overlaps with the edge of the virtual picture.

9. An electronic device, characterized in that: The device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the display compensation method for the near-eye display device as claimed in claim 8 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps in the display compensation method of the near-eye display device according to claim 8 are implemented.

Images