CN114093291A - Head-mounted display device, system and method for adjusting display brightness of device - Google Patents
Head-mounted display device, system and method for adjusting display brightness of device Download PDFInfo
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- CN114093291A CN114093291A CN202111613131.3A CN202111613131A CN114093291A CN 114093291 A CN114093291 A CN 114093291A CN 202111613131 A CN202111613131 A CN 202111613131A CN 114093291 A CN114093291 A CN 114093291A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000002834 transmittance Methods 0.000 claims abstract description 50
- 230000003287 optical effect Effects 0.000 claims abstract description 43
- 230000010287 polarization Effects 0.000 claims abstract description 7
- 235000019557 luminance Nutrition 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011521 glass Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000003190 augmentative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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Abstract
The application relates to a head-mounted display device, a system and a method for adjusting the brightness of a display of the device, wherein the head-mounted display device comprises: a display for emitting image light; an optical element that constitutes an appearance of the head-mounted display device and is used for processing image light, the processing including at least one of reflection, polarization, and refraction; a controller electrically connected to the display for adjusting a brightness of the display based on a correspondence between light transmittance information of the light shielding unit and a brightness of the display in a state where the light shielding unit is connected to a housing of the head-mounted display device; and the housing is used for accommodating the controller, the display and the optical element. The brightness of the displayer can be adjusted on different ambient light occasions, so that the head-mounted display equipment has the best display effect on different occasions, and the user experience is improved.
Description
Technical Field
The application relates to the technical field of augmented reality, in particular to a head-mounted display device, a system and a method for adjusting the brightness of a display of the device.
Background
Head-mounted display equipment such as AR (Augmented Reality) glasses can superimpose virtual information onto the real world, so that a real environment and a virtual object can be superimposed onto the same picture in real time, the picture is displayed in front of the user, and the Reality of the user is enhanced.
When the user wears the AR glasses, ambient light enters the user's eyes to make the user see the real world. When a user wears the AR glasses, the visual effect is that the picture displayed by the display can be projected into the real world, and the best display effect can be achieved only when the contrast between the picture and the real environment is proper. The ambient light intensity is different on different occasions, if a user starts to wear the AR glasses on the occasions with strong ambient light, in order to achieve proper contrast, the display brightness of the display is relatively high; if the user moves to the weak ambient light and the brightness of the display is not adjusted, the brightness of the display is too high for the weak ambient light, and the user feels dazzling. If the user starts wearing the AR glasses in a weak ambient light situation, the display brightness of the display is relatively low in order to achieve a suitable contrast; if the user moves to the case of strong ambient light again without adjusting the brightness of the display, the brightness of the display is too low for the case of strong ambient light. The contrast between the light of the picture and the ambient light is not obvious, which may result in undesirable display effect and make the picture displayed unclear.
Disclosure of Invention
In view of the foregoing problems in the prior art, an object of the present application is to provide a head-mounted display device, a system, and a method for adjusting the brightness of a display of the device, which can solve the technical problems in the prior art that the brightness of a display of a head-mounted display device such as AR glasses cannot be effectively adjusted along with ambient light, and the display effect is poor.
In order to achieve the above object, the present application provides a head-mounted display device including:
a display for emitting image light;
an optical element that constitutes an appearance of the head-mounted display device and is used for processing image light, the processing including at least one of reflection, polarization, and refraction;
a controller electrically connected to the display for adjusting a brightness of the display based on a correspondence between light transmittance information of the light shielding unit and a brightness of the display in a state where the light shielding unit is connected to a housing of the head-mounted display device; and
the housing is used for accommodating the controller, the display and the optical element.
In some embodiments, the optical element includes a beam splitter for reflecting image light emitted by the display and a half mirror for transmitting ambient light and reflecting image light reflected by the beam splitter.
The present application further provides a head-mounted display device system, comprising:
the head-mounted display device described above; and
a light shielding unit; the light shielding unit is detachably connected with the shell and shields at least one part of the optical element so as to be used for adjusting the light quantity passing through the optical element, the light shielding unit is provided with light transmittance information and is in communication connection with the controller, and the light transmittance information and the brightness of the display have a corresponding relation.
In some embodiments, the light shielding unit includes a plurality of light shields, each of which has a different light transmittance to respectively match a plurality of luminances of the display.
In some embodiments, each of the light shields has a respective code, and the display has a plurality of luminances in one-to-one correspondence with each of the codes.
In some embodiments, the light transmittance of the light shielding unit may vary linearly or may vary in a step shape.
In some embodiments, the light shielding unit is provided with an adjustment switch for adjusting light transmittance of the light shielding unit.
In some embodiments, a USB interface is disposed on the housing, a USB plug matched with the USB interface is disposed on the light shielding unit, and the light shielding unit is connected to the housing through the USB interface and the USB plug and is in communication connection with the controller.
In some embodiments, a first magnetic element and a reader-writer are arranged on the housing, a second magnetic element and an electronic tag are arranged on the shading unit, the shading unit is connected with the housing through the first magnetic element and the second magnetic element, and the shading unit is in communication connection with the controller through the reader-writer and the electronic tag.
The present application further provides a method for adjusting brightness of a display of a head-mounted display device, where the head-mounted display device includes: a display for emitting image light; an optical element that constitutes an appearance of the head-mounted display device and is used for processing image light, the processing including at least one of reflection, polarization, and refraction; a controller electrically connected to the display; and a housing for housing the controller, display and optical element; a shade unit removably coupled to the housing and covering at least a portion of the optical element for adjusting an amount of light passing through the optical element, the shade unit having light transmittance information and being communicatively coupled to the controller,
the method comprises the following steps:
light transmittance information of the light shielding unit is acquired,
and adjusting the brightness of the display to be the brightness matched with the light transmittance information according to the corresponding relation between the light transmittance information and the brightness of the display.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the claimed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a display and optical elements of a head mounted display device according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of a head mounted display system according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an assembly structure of a head mounted display device system according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a light shielding unit according to an embodiment of the present application;
FIG. 6 is a partial structural view of the shading unit in FIG. 5 in another direction;
FIG. 7 is a schematic structural diagram of another shading unit according to an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a head mounted display device system according to an embodiment of the present application;
fig. 9 is a flowchart of a method for adjusting display brightness of a head-mounted display device according to an embodiment of the present application.
Reference numerals:
10-a head mounted display device; 1-display, 2-optical element, 21-spectroscope, 22-half-reflecting mirror; 3-a shell; 20-shading unit, 201-buckle, 202-second magnetic element; 101-first image ray, 102-ambient ray, 103-second image ray; 100-human eye.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Detailed descriptions of known functions and known components are omitted in the present application in order to keep the following description of the embodiments of the present application clear and concise.
Fig. 1 and 2 are schematic structural diagrams of a head-mounted display device according to an embodiment of the present application;
fig. 3, 4 and 8 show schematic structural diagrams of a head-mounted display device system according to an embodiment of the present application. As shown in fig. 1 to 4 and fig. 8, an embodiment of the present application provides a head-mounted display device 10, where the head-mounted display device 10 includes a display 1, an optical element 2, a controller, and a housing 3. The display 1 is used to emit image light. The optical element 2 forms the appearance of the head-mounted display device 10 and is used for processing the image light, wherein the processing at least comprises one of reflection, polarization and refraction. The controller is electrically connected to the display 1 for adjusting the luminance of the display 1 based on the correspondence between the light transmittance information of the light shielding unit 20 and the luminance of the display 1 in a state where the light shielding unit 20 is connected to the housing 3 of the head-mounted display device 10. The housing 3 is used to house the controller, the display 1 and the optical element 2.
The head-mounted display device 10 provided by the embodiment of the application contains the display 1, the optical element 2 and the controller through the shell 3, and the controller is electrically connected with the display 1, under the state that the shading unit 20 is connected with the shell 3 of the head-mounted display device 10, the light transmittance information of the shading unit 20 is obtained through the controller, and according to the corresponding relation between the light transmittance information of the shading unit 20 and the brightness of the display 1, the brightness of the display 1 is adjusted under different environment light fields, a display picture suitable for the contrast of the real world can be obtained, so that the head-mounted display device 10 can achieve the best display effect under different environment light occasions, the display performance and the application range of the head-mounted display device 10 are improved, and the user experience is improved.
It will be appreciated that the above-mentioned suitable contrast ratio with respect to the real world is a suitable ratio between the brightness of the display 1 and the brightness of the ambient light entering the human eye through the optical element 2 of the head-mounted display device 10 (ambient light intensity), which may achieve a desired display effect.
It will be appreciated that the display 1 and controller may be housed within the housing 3.
In some embodiments, as shown in fig. 2, the optical element 2 includes a beam splitter 21 and a half mirror 22, the beam splitter 21 is used for reflecting the image light (first image light 101) emitted from the display 1, and the half mirror 22 is used for transmitting the ambient light 102 and the image light (second image light 103) reflected by the beam splitter 21. The single-line arrows in fig. 2 indicate the optical paths of the image light rays, and the triangular arrows indicate the optical paths of the ambient light rays 102.
The spectroscope 21 is disposed downstream of the display 1, the half mirror 22 is disposed downstream of the spectroscope 21, a part of the first image light 101 emitted from the display 1 is reflected by the spectroscope 21 and then enters the half mirror 22, a part of the first image light 101 entering the half mirror 22 is transmitted outward through the half mirror 22, another part of the first image light 101 is reflected at the half mirror 22 (the first image light 101 reflected by the half mirror 22 is the second image light 103), and a part of the second image light 103 reflected by the half mirror 22 is observed by the human eye 100 through the spectroscope 21. Meanwhile, ambient light 102 (a real world scene) may be incident on the half mirror 22 from the outside, and the ambient light 102 is observed by the human eye 100 after being transmitted through the half mirror 22 and the dichroic mirror 21 in sequence. The superposition of the image represented by the image light emitted by the display 1 and the environment image represented by the environment light 102 in the human eye 100 may enable a wearer (user) wearing the head-mounted display device 10 to perceive an augmented reality effect of a real scene. That is, after wearing the head-mounted display device 10, the user sees the real world and the virtual picture added in the real world at the same time. For example, a virtual cartoon character is placed on a real-world table, or a virtual image, video, etc. is displayed in the field of view.
In other embodiments, the optical element 2 may also be other elements, for example, the optical element may include the beam splitter 21, and a mirror, a refractor, or a combination thereof disposed between the beam splitter 21 and the human eye 100, and a part of the first image light 101 emitted by the display 1 is transmitted through the beam splitter 21, and then enters the human eye 100 after being reflected by the mirror and/or refracted by the refractor disposed between the beam splitter 21 and the human eye 100, and a part of the ambient light 102 is directly transmitted to the human eye 100 through the beam splitter 21.
In a specific implementation, the optical elements 2 may be determined according to actual needs of a user, for example, to reduce scattering of the head-mounted display device, the optical elements 2 may be determined and the determined optical elements 2 may be arranged accordingly, so that most of the first image light 101 emitted from the display 1 can be incident on the human eye 100.
In this embodiment, the head-mounted display device 10 may be AR glasses, and include lenses constituting the spectroscope 21 and the half mirror 22 of the head-mounted display device 10. The spectroscope 21 and the half mirror 22 constitute the appearance of the AR glasses, and "appearance" herein refers to a portion that can be directly seen from the outside when a user observes the AR glasses. The head mounted display device 10 may also be a helmet or other augmented reality enabled device.
Fig. 3, 4 and 8 are schematic structural diagrams illustrating a head-mounted display device system according to an embodiment of the present application; fig. 5 to 7 are schematic structural diagrams illustrating a light shielding unit of a head-mounted display device system according to an embodiment of the present application.
As shown in fig. 3 to 8, an embodiment of the present application further provides a head-mounted display device system, which includes the head-mounted display device 10 and the light shielding unit 20 described above. The light shielding unit 20 is detachably connected to the housing 3 and shields at least a part of the optical element 2 for adjusting the amount of light passing through the optical element 2, the light shielding unit 20 having light transmittance information and being in communication with the controller. There is a correspondence between the light transmittance information and the luminance of the display 1.
The "light transmittance information" referred to herein indicates information indicating how much light can be allowed to pass through the light shielding unit 20, for example, information indicating that the light shielding unit 20 can allow ambient light such as 0, 20%, 40%, 65% or the like to pass through. The luminance of the display 1 may be set in advance, for example, the luminance of the display 1 is set to the reference luminance when the light shielding unit 20 is not connected to the housing 3 of the head-mounted display device 10. The correspondence between the light transmittance information and the luminance of the display 1 may be established in advance.
For example, when the light transmittance information indicates that 0 ambient light is allowed to pass through, i.e., the light shielding unit 20 is completely opaque, and the user cannot observe the external environment through the head-mounted display device 10, the display luminance corresponding to the light transmittance information may be set to be lower than the reference luminance, e.g., 65% of the reference luminance corresponds to 0 ambient light. At this time, since no external light enters the glasses of the user, the lower brightness of the display 1 can achieve a proper contrast and a comfortable display effect, and the lower brightness of the display can reduce power consumption.
For example, when the user uses the head-mounted display device 10 outdoors where the ambient light intensity is strong, the brightness of the display 1 may need to be increased by 65% based on the reference brightness to achieve a proper contrast to clearly see the display screen under the ambient light intensity. However, too high display brightness causes too high an overall light intensity entering the user's glasses, causing discomfort and high power consumption. The user can connect the light shielding unit 20 with the housing 3 to adjust the amount of ambient light passing through the optical element 2. For example, the light transmittance information of the light shielding unit 20 indicates that it can allow 60% of the ambient light to pass through, and at this time, the brightness of the display 1 may be adjusted according to the preset correspondence. For example, the brightness of the display 1 is increased by 5% based on the reference brightness to achieve a suitable contrast ratio, so that the overall light intensity entering the user's glasses is suitable and the power consumption is low.
It is understood that there may be other corresponding relations between the light transmittance information and the brightness of the display 1, which are not illustrated herein, and those skilled in the art may adjust the corresponding relations through actual product conditions.
It is understood that the above-mentioned values of 0, 5%, 20%, 40%, 60%, 65% are exemplary and not limiting, and those skilled in the art can modify the above-mentioned values according to actual product conditions.
The head-mounted display device system provided by the embodiment of the application can be detachably installed on the head-mounted display device 10 through the shading unit 20 which can at least shade a part of the optical element 2, and can correspondingly adjust the brightness of the display 1 according to the corresponding relation between the light transmittance information of the shading unit 20 and the brightness of the display 1, so that a display picture with proper contrast relative to the real world is obtained, the head-mounted display device system can achieve the best display effect in different occasions, and the display performance and the application range of the head-mounted display device system are improved.
In some embodiments, the light shield unit 20 may include a plurality of light shields, each having a different light transmittance to match a plurality of luminances of the display 1, respectively.
In order to adapt to the ambient light intensity in different situations, the head-mounted display device 10 is provided with a light shield that allows different amounts of light to pass through, so as to adjust the amount of ambient light entering the head-mounted display device 10, and further, the brightness of the display 1 is adaptively adjusted according to the light transmittance information of the corresponding light shield. Each light shield has fixed different light transmissivity, and the user can select different light shields in different light intensity occasions to adapt to different occasions.
Further, each light shield has a respective code, and the display 1 has a plurality of luminances in one-to-one correspondence with each code. That is, each light shield having different light transmittance information may be encoded, and the correspondence between each code and the luminance of the display 1 may be stored in advance. Install in casing 3 back at the lens hood that will correspond the code, the luminance that display 1 corresponds can be looked for fast to the controller according to the code of lens hood, and then carries out quick adjustment to display 1's luminance to this lens hood of adaptation, so, can improve the adjustment efficiency of display 1 luminance.
In other embodiments, the light transmittance of the light shielding unit 20 may vary linearly or may vary in a step shape. That is, the light shielding unit may be a single light shielding cover, the light transmittance of the light shielding cover may be changed according to the change of the ambient light intensity, and then the brightness of the display 1 is adjusted according to the changed light transmittance of the light shielding cover.
When the light shielding unit 20 is a single light shielding cover, the device used for manufacturing the light shielding cover may be one of an electrochromic device, a photochromic device, a piezochromic device and a liquid crystal device, so as to form the light shielding cover with variable light transmittance.
In a specific implementation, the light shield can be made of electrochromic materials, photo-chromic materials or liquid crystals at the part (the outer side of the lens) corresponding to the lens of the AR glasses; the lens may be made of a transparent lens, and a film made of the electrochromic material, the photochromic material, or the liquid crystal may be attached to one surface (outer surface) of the lens facing the lens hood to form the lens hood.
Alternatively, the light shielding unit 20 is provided with an adjustment switch for adjusting the light transmittance of the light shielding unit 20. That is, when the light shielding unit 20 is a single light shielding cover, the light transmittance of the light shielding unit 20 can be adjusted by the adjusting switch provided at the light shielding unit 20, and the adjustment is convenient.
In this embodiment, only one light shield is provided as the light shielding unit 20, and the light transmittance of the light shielding unit 20 is adjusted by the adjusting switch, so that the adjustment is convenient, the light shield does not need to be frequently disassembled and assembled, and the service life of the head-mounted display device system can be prolonged. In the embodiment of only setting one lens hood, when the head-mounted display device system is maintained and replaced, the lens hood and the adjusting switch may need to be replaced together, and only the corresponding lens hood needs to be replaced in the light shielding unit 20 formed by a plurality of lens hoods, so that the assembly, disassembly and replacement are convenient, the whole replacement is not needed, and the cost of the whole machine can be reduced.
In some embodiments, the housing 3 is provided with a USB interface, the light shielding unit 20 is provided with a USB plug matching with the USB interface, and the light shielding unit 20 is connected with the housing 3 through the USB interface and the USB plug and is in communication connection with the controller. That is, the light shielding unit 20 is in plug-in fit with the USB plug through the USB interface, so that the light shielding unit 20 is mechanically connected to the head-mounted display device 10, and the light shielding unit 20 is in wired communication with the controller to transmit information of the light shielding cover.
Optionally, in other embodiments, the USB interface on the housing 3 may be a magnetic type USB interface, the light shielding unit 20 is provided with a magnetic type USB connector cooperating with the magnetic type USB interface, the light shielding unit 20 is connected to the housing 3 through a magnetic type manner, and the light shielding unit 20 is connected to the controller inside the housing 3 through the USB interface in a wired communication manner.
In the above embodiment, the USB interface and the USB plug (or the USB connector) are engaged, so that the light shielding unit 20 can be fixedly connected and can perform communication, and the number of system components can be reduced.
Optionally, in still other embodiments, as shown in fig. 5 and 6, a buckle 201 is disposed at an edge of the light shielding unit 20, and a slot cooperating with the buckle 201 is disposed on the housing 3, so that the light shielding unit 20 and the housing 3 are fixedly connected. Can be through buckle 201 and draw-in groove matched with joint mode with shading unit 20 and casing 3 mechanical connection promptly to guarantee the reliability of shading unit 20 installation, prevent to drop from wearing display device 10 when using, improve user and use experience.
Alternatively, in still other embodiments, as shown in fig. 7 and 8, a first magnetic element and a reader/writer are provided on the housing 3, a second magnetic element 202 and an electronic tag are provided on the light shielding unit 20, the light shielding unit 20 is connected to the housing 3 through the first magnetic element and the second magnetic element 202, and the light shielding unit 20 is in communication connection with the controller through the reader/writer and the electronic tag. That is, in this embodiment, the light shielding unit 20 and the housing 3 are connected by the mutual attraction of the two magnetic elements, so that the assembly and disassembly are convenient; and the information of the lens hood is quickly transmitted by the communication connection between the reader and the controller (the controller is electrically connected with the electronic tag arranged on the shell) through a near-end wireless communication connection mode (such as RFID or NFC) matched with the electronic tag.
In other embodiments, the shading unit 20 and the controller may be communicatively connected by a wireless communication method such as Zig-zag, Bluetooth (Bluetooth), wireless broadband (Wi-Fi), and the like. Since the light shielding unit 20 needs to be installed on the head-mounted display device 10, in this embodiment, a near-end communication connection mode in which a reader/writer and an electronic tag are matched is adopted, so that the cost can be reduced while the information is rapidly transmitted.
In a specific implementation, a fixed connection manner (for example, a magnetic attraction type connection, a snap connection, etc.) of the light shielding unit 20 and the housing 3, and a communication connection manner (for example, the above-mentioned manners) of the light shielding unit 20 and the controller may be set according to actual needs, and the present embodiment is not particularly limited.
Fig. 9 shows a flowchart of an adjustment method of display brightness of a head-mounted display device according to an embodiment of the present application. As shown in fig. 9, an embodiment of the present application further provides a method for adjusting display brightness of a head-mounted display device, where the head-mounted display device 10 includes: a display 1 for emitting image light; an optical element 2, the optical element 2 forming an appearance of the head-mounted display device 10 and processing the image light, the processing at least including one of reflection, polarization and refraction; the controller is electrically connected with the display 1; and a housing 3, the housing 3 for housing the controller, the display 1 and the optical element 2; a shade unit 20 is detachably coupled to the housing 3 and shades at least a portion of the optical element 2 for adjusting the amount of light passing through the optical element 2, the shade unit 20 having light transmittance information and being communicatively coupled to the controller,
the method comprises the following steps: s1: light transmittance information of the light shielding unit 20 is acquired, S2: the luminance of the display 1 is adjusted to the luminance matching the light transmittance information according to the correspondence between the light transmittance information and the luminance of the display 1.
In an ambient light situation, light transmittance information of the light shielding unit 20, which is adjusted according to the ambient light intensity, is acquired, and then the controller adjusts the luminance of the display 1 according to the correspondence between the light transmittance information and the luminance of the display 1 stored in advance to fit the light transmittance information.
The method for adjusting the display brightness of the head-mounted display device provided by the embodiment of the present application corresponds to the head-mounted display device and the head-mounted display device system of the above embodiments, and any optional items in the embodiments of the head-mounted display device and the head-mounted display device system are also applicable to the embodiments of the method for adjusting the display brightness of the head-mounted display device, and are not described in detail here.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. A head-mounted display device, comprising:
a display for emitting image light;
an optical element that constitutes an appearance of the head-mounted display device and is used for processing image light, the processing including at least one of reflection, polarization, and refraction;
a controller electrically connected to the display for adjusting a brightness of the display based on a correspondence between light transmittance information of the light shielding unit and a brightness of the display in a state where the light shielding unit is connected to a housing of the head-mounted display device; and
the housing is used for accommodating the controller, the display and the optical element.
2. The head mounted display device of claim 1, wherein the optical element comprises a beam splitter for reflecting image light emitted by the display and a half mirror for transmitting ambient light and reflecting image light reflected by the beam splitter.
3. A head-mounted display device system, comprising:
the head mounted display device of claim 1 or 2; and
a light shielding unit; the light shielding unit is detachably connected with the shell and shields at least one part of the optical element so as to be used for adjusting the light quantity passing through the optical element, the light shielding unit is provided with light transmittance information and is in communication connection with the controller, and the light transmittance information and the brightness of the display have a corresponding relation.
4. The head mounted display device system of claim 3, wherein the light shield unit comprises a plurality of light shields, each of the light shields having a different light transmittance to match a respective plurality of brightnesses of the display.
5. The head mounted display device system of claim 4, wherein each of the light shields has a respective code, and the display has a plurality of luminances in one-to-one correspondence with each of the codes.
6. The head mounted display device system of claim 3, wherein the light transmittance of the light blocking unit may vary linearly or may vary stepwise.
7. The head mounted display device system according to claim 6, wherein the light shielding unit is provided with an adjustment switch for adjusting light transmittance of the light shielding unit.
8. The head-mounted display device system according to any one of claims 3 to 7, wherein a USB interface is provided on the housing, a USB plug matched with the USB interface is provided on the shading unit, and the shading unit is connected with the housing through the USB interface and the USB plug and is in communication connection with the controller.
9. The head-mounted display device system according to any one of claims 3 to 7, wherein a first magnetic element and a reader are provided on the housing, a second magnetic element and an electronic tag are provided on the light shielding unit, the light shielding unit is connected to the housing through the first magnetic element and the second magnetic element, and the light shielding unit is in communication connection with the controller through the reader and the electronic tag.
10. A method of adjusting display brightness of a head mounted display device, the head mounted display device comprising: a display for emitting image light; an optical element that constitutes an appearance of the head-mounted display device and is used for processing image light, the processing including at least one of reflection, polarization, and refraction; a controller electrically connected to the display; and a housing for housing the controller, display and optical element; a shade unit removably coupled to the housing and covering at least a portion of the optical element for adjusting an amount of light passing through the optical element, the shade unit having light transmittance information and being communicatively coupled to the controller,
the method comprises the following steps:
light transmittance information of the light shielding unit is acquired,
and adjusting the brightness of the display to be the brightness matched with the light transmittance information according to the corresponding relation between the light transmittance information and the brightness of the display.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114822245A (en) * | 2022-03-31 | 2022-07-29 | 联想(北京)有限公司 | Electronic device |
| CN114822245B (en) * | 2022-03-31 | 2024-01-23 | 联想(北京)有限公司 | Electronic equipment |
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