CN106773042B - Composite display, display control method and wearable device - Google Patents
Composite display, display control method and wearable device Download PDFInfo
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- CN106773042B CN106773042B CN201611168182.9A CN201611168182A CN106773042B CN 106773042 B CN106773042 B CN 106773042B CN 201611168182 A CN201611168182 A CN 201611168182A CN 106773042 B CN106773042 B CN 106773042B
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- 238000002834 transmittance Methods 0.000 claims abstract description 107
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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
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
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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 invention discloses a composite display, a display control method and wearable equipment, wherein the composite display comprises a first display device and a second display device which are mutually overlapped, the first display device and the second display device are perspective display devices, and the second display device is used for adjusting the second display device to be in different transmittances under the control of a control signal. Therefore, by applying the scheme of the invention, the other perspective display device which can dynamically adjust the transmittance can be superposed on the perspective display device which can not dynamically adjust the transmittance under the control of the control signal, and the perspective display device which can not dynamically adjust the transmittance indirectly has the effect of dynamic transmittance change through superposition of display effects of the two perspective display devices, thereby solving the problem that the transmittance of the existing perspective display can not be dynamically adjusted.
Description
Technical Field
The invention belongs to the field of display application of perspective display equipment, and particularly relates to a composite display, a display control method and wearable equipment.
Background
The current see-through displays, such as lenses of AR (Augmented Reality) display devices and other see-through optical carriers, cannot display black/gray information, so that the transmittance of the see-through display cannot be dynamically adjusted, which may bring a large influence on user experience.
Disclosure of Invention
In view of the above, the present invention provides a composite display, a display control method and a wearable device, and aims to solve the problem that the transmittance of the conventional see-through display cannot be dynamically adjusted.
Therefore, the invention discloses the following technical scheme:
a composite display, comprising: first display device and the second display device of coincide each other, wherein:
the first display device and the second display device are perspective display devices;
the second display device is used for adjusting the second display device to be in different transmittances under the control of the control signal.
In the composite display, preferably, the second display device is a monochrome see-through display screen.
In the composite display, the second display device is preferably a liquid crystal film.
In the above composite display, preferably, the first display device and the second display device are stacked together by a stacking method or an adhesive method, and the second display device is stacked outside the first display device, and the outside is: another side corresponding to a viewing side of a user when using the first display device; wherein:
when the first display device and the second display device are overlapped into a whole in an overlapping mode, the distance between the two overlapping surfaces corresponding to the first display device and the second display device is smaller than a preset distance threshold value.
A display control method, which is used for carrying out display control on the composite display; the method comprises the following steps:
acquiring first display information, and controlling the first display device to correspondingly display based on the first display information;
obtaining first control information, wherein the first control information is used for controlling the transmittance of the second display device;
and adjusting the transmittance of the second display device according to the first control information.
In the above method, preferably, the obtaining the first control information includes:
obtaining gray scale information to be displayed from the first display information;
generating the first control information for controlling the transmittance of the second display device based on the gradation information.
Preferably, the obtaining of the gray scale information to be displayed from the first display information includes:
a grayscale component is separated from the first display information, the grayscale component including a grayscale value.
In the above method, preferably, when the second display device is a monochrome see-through display screen, the adjusting the transmittance of the second display device includes:
and adjusting the transmittance of the second display device by adjusting the gray value of the second display device.
In the method, it is preferable that, when the second display device is a liquid crystal film, the adjusting of the transmittance of the second display device includes:
and adjusting the rotation direction of liquid crystal molecules in the liquid crystal film based on the first control information so that the liquid crystal film is in corresponding transmittance.
The above method, preferably, further comprises:
increasing the brightness of the first display device when the transmittance of the second display device decreases.
A wearable device comprising a composite display as described above, and comprising a fixture, a controller, wherein:
the composite display is integrated on the fixture;
the fixing device is used for fixing the wearable device on a preset part of a user, and when the wearable device is fixed on the preset part of the user, the position of the composite display is opposite to the position of human eyes of the user, so that the user can watch the display content of the composite display;
the controller is used for controlling the first display device in the composite display to perform corresponding display and controlling the second display device in the composite display to be in different light transmittances.
Above-mentioned wearable equipment, it is preferred, still including set up in the protective layer outside the first display device in the composite display, the second display device set up in on the protective layer, wherein, the outside is: the other side corresponding to the viewing side of the user when using the first display device.
In the wearable device, preferably, the second display device is the protective layer.
The composite display disclosed by the invention comprises a first display device and a second display device which are overlapped with each other, wherein the first display device and the second display device are perspective display devices, and the second display device is used for adjusting the second display device to be in different transmittances under the control of a control signal. Therefore, by applying the scheme of the invention, the other perspective display device capable of dynamically adjusting the transmittance can be superposed on the perspective display device incapable of dynamically adjusting the transmittance under the control of the control signal, and the perspective display device incapable of dynamically adjusting the transmittance indirectly has the effect of dynamically changing the transmittance through superposition of display effects of the two perspective display devices, so that the dynamic adjustment of the transmittance of the perspective display device incapable of dynamically adjusting the transmittance is indirectly realized, and the problem that the transmittance of the existing perspective display device cannot be dynamically adjusted is effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a composite display according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an exemplary structure of an AR display module;
fig. 3 is a schematic diagram of a display module of a composite display obtained after the AR display module overlaps the monochrome see-through display screen according to a second embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an overlapping effect of the first display device and the second display device after being overlapped according to the second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a third embodiment of a display control method according to the present invention;
FIG. 6 is a flowchart illustrating a fourth embodiment of a display control method according to the present invention;
FIG. 7 is a flowchart illustrating a fifth embodiment of a display control method according to the present invention;
FIG. 8 is a flowchart illustrating a sixth exemplary embodiment of a display control method according to the present invention;
FIG. 9 is a schematic structural diagram of a wearable device according to a ninth embodiment of the present invention;
fig. 10 is a schematic diagram of an example product of a wearable device according to a ninth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a composite display according to a first embodiment of the present invention, the composite display includes a first display device 11 and a second display device 12 stacked on each other, wherein:
the first display device 11 and the second display device 12 are perspective display devices;
the second display device 12 is used for adjusting the second display device 12 to be at different transmittances under the control of the control signal.
In the present invention, the transmittance refers to the transmittance of light, and specifically, the first display device 11 is a see-through display device in which the transmittance cannot be dynamically adjusted. For example, after the current see-through display (such as lenses and other see-through optical carriers) is shipped, the transmittance of the current see-through display is fixed, black/gray information cannot be displayed, and the transmittance cannot be dynamically adjusted, so that the first display device 11 can be a see-through display/display screen of the type that cannot be dynamically adjusted.
In order to solve the problem that the transmittance of the first display device 11 cannot be dynamically adjusted, the second display device 12 is a see-through display device capable of dynamically adjusting the transmittance of the second display device 12 under the control of a control signal. Illustratively, the second Display device 12 may be a monochrome see-through Display screen, such as a monochrome see-through LCD (Liquid Crystal Display), and in other embodiments of the present invention, the second Display device 12 may also be a Liquid Crystal film.
After the first display device 11 and the second display device 12 are overlapped, the transmittance of the second display device 12 (i.e. the second display device) can be dynamically adjusted under the control of the control signal, so that the first display device 11 indirectly has the effect of dynamic transmittance change through the superposition of the display effects of the first display device 11 and the second display device 12, and the dynamic transmittance adjustment of the first display device 11 is indirectly realized.
Therefore, by applying the scheme of the invention, the other perspective display device capable of dynamically adjusting the transmittance can be superposed on the perspective display device incapable of dynamically adjusting the transmittance under the control of the control signal, and the perspective display device incapable of dynamically adjusting the transmittance indirectly has the effect of dynamically changing the transmittance through superposition of display effects of the two perspective display devices, so that the dynamic adjustment of the transmittance of the perspective display device incapable of dynamically adjusting the transmittance is indirectly realized, and the problem that the transmittance of the existing perspective display device cannot be dynamically adjusted is effectively solved.
Example two
In the second embodiment, the composite display is described in detail, as shown in fig. 1, the composite display includes a first display device 11 and a second display device 12 that are overlapped with each other, and the first display device 11 and the second display device 12 are perspective display devices; the second display device 12 is used for adjusting the second display device 12 to be at different transmittances under the control of the control signal.
The first display device and the second display device are stacked into a whole in a predetermined manner, for example, they are stacked into a whole in a stacking manner or an adhesive manner, and the second display device is stacked on the outer side of the first display device, where the outer side is: the other side corresponding to the viewing side of the user when using the first display device.
It should be noted that, when the first display device 11 and the second display device 12 are stacked into a whole in a stacking manner, there may be a situation that the two devices cannot be completely attached to each other, for example, a certain gap exists between the two devices. The distance threshold may be determined based on the actual display effect of the composite display at different distances (the distance between the two superposed surfaces of the two display devices), and the determined distance threshold at least enables the composite display device to have a normal display effect.
Next, the embodiment takes the first display device as the display module of the AR display apparatus as an example, and details the implementation structure of the composite display.
In some examples, the AR display module is a transparent display screen capable of displaying content while allowing ambient light to penetrate the screen. Because the AR display module can not dynamically adjust the transmittance, the outside of the AR display module, particularly the outside of the transparent display screen, is superposed with a second display device which can adjust the transmittance of the display device under the control of a control signal, wherein, for example, a bonding mode or a superposition mode can be particularly adopted, and the outside of the transparent display screen is superposed with a monochrome perspective LCD display screen.
Alternatively, referring to an exemplary structural schematic diagram of the AR display module shown in fig. 2, the display module generally includes an image source 21 and a see-through optical carrier 22, where the image source 21 may be implemented by a micro display screen or micro projection, for example, and the see-through optical carrier 22 may include an optical waveguide/a half-reflecting half-mirror/a free-form lens, etc., as shown in fig. 2, in this example, the see-through optical carrier 22 is located at a side of a human eye adjacent to the human eye, which is referred to as an inner side in this embodiment, and correspondingly, the image source 21 is located at an outer side, and the display module performs transmission and imaging of light (external objects) (imaging of light emitted by the image source) through the image source 21 and the see-through optical carrier 22.
Since the AR display module cannot dynamically adjust the transmittance, referring to fig. 3, the present invention considers that a second display device 23 capable of adjusting the transmittance of itself under the control of a control signal is stacked on the outer side of the AR display module, for example, the outer side of the see-through optical carrier 22 in fig. 2, wherein, for example, a bonding method or a stacking method can be specifically adopted, a monochrome see-through LCD display screen is stacked on the outer side of the region within the human eye visual field range of the see-through optical carrier 22, and a schematic diagram of the stacking effect after stacking the two can be referred to fig. 4.
When the transmittance of the monochrome perspective type LCD display screen is dynamically adjusted according to actual display requirements, based on the superposed display effect of the AR display module and the monochrome perspective type LCD display screen, the transmittance of the composite display obtained after the AR display module and the monochrome perspective type LCD display screen are superposed can be dynamically changed.
EXAMPLE III
For the composite display disclosed in the above embodiments, the third embodiment provides a display control method for performing display control on the first display device and the second display device in the composite display, and with reference to the flowchart of the display control method shown in fig. 5, the method may include the following steps:
and 501, obtaining first display information, and controlling the first display device to perform corresponding display based on the first display information.
The first display device 11 is a see-through display device such as an AR display device, which cannot dynamically adjust transmittance. The first display information may be information to be displayed by a first display device based on actual display requirements, and for example, when the first display device is an AR display device, the first display information may be information to be displayed by the AR display device.
In practical implementation, the first display information can be obtained through a controller, and the first display device is controlled to perform corresponding display based on the first display information.
The first display information reflects the display requirement of the first display device, and generally includes, in addition to the color information of the corresponding image to be displayed by the first display device, the corresponding gray scale information to be displayed by the first display device, so as to adjust the transmittance of the first display device to be matched when displaying the corresponding scene image through the gray scale information, that is, the first display information also includes the transmittance requirement information of the first display device. In view of the characteristics that the first display device cannot display gray scale information and cannot dynamically adjust transmittance, the method of the present invention solves the problem through the following steps.
The second display device is a see-through display device capable of dynamically adjusting the transmittance of the second display device 12 under the control of a control signal. For example, the second display device may be a monochrome see-through display screen, a liquid crystal film, or the like.
The first control information may be information for controlling the transmittance of the second display device generated based on transmittance requirement information in the first display information.
On the basis of generating the first control information based on the transmittance requirement information, the step adjusts the transmittance of the second display device according to the first control information, so that the transmittance of the second display device is matched with the transmittance requirement information. On the basis, the composite display can synchronously show the required transmittance while displaying the corresponding scene images based on the superposition display effect of the first display device and the second display device.
Therefore, when the first display device which can not dynamically adjust the transmittance has a corresponding transmittance adjustment requirement, the transmittance of the second display device which is overlapped with the first display device into a whole is synchronously adjusted, and the display effects of the first display device and the second display device are overlapped, so that the first display device can display the corresponding scene image and can display the required transmittance for the displayed corresponding scene image by means of the transmittance condition of the second display device. The problem that the transmittance of the perspective display equipment cannot be dynamically adjusted in the prior art is effectively solved.
Example four
A fourth embodiment provides a possible implementation manner of the display control method, where the method is used to perform display control on a first display device and a second display device in the composite display, and the implementation manner of this embodiment is suitable for a case where the second display device is a monochrome see-through display screen, for example, the second display device may specifically be a monochrome see-through LCD, and referring to a flowchart of the display control method shown in fig. 6, the method may be implemented by the following steps:
The first display information reflects the display requirement of the first display device, and generally includes, in addition to the corresponding color information of the image to be displayed by the first display device, the corresponding gray scale information to be displayed by the first display device, so as to adjust the transmittance of the first display device to be matched when displaying the corresponding scene image through the gray scale information.
Since the first display device is a device such as an AR display device which cannot display gray scale information and cannot dynamically adjust transmittance, when the first display device is controlled to perform corresponding display based on the first display information, the first display device can perform corresponding effect display only on other display information except the gray scale information in the first display information.
In view of the fact that the first display device cannot display the gray scale information in the first display information, the step obtains the gray scale information to be displayed from the first display information, and realizes synchronous control on the second display device according to the obtained gray scale information.
Specifically, the gray scale information in the first display information may be obtained by separating a gray scale component from the first display information, where the gray scale component includes a gray scale value, and the first control information may be generated based on the gray scale value.
On the basis of the above steps, the step controls the second display device according to the separated gray scale information, specifically, adjusts the gray scale value of the second display device to the gray scale value of the gray scale component separated from the first display information, and different gray scale values correspond to different transmittances, so that the purpose of dynamically adjusting the transmittances of the second display device can be achieved by dynamically adjusting the gray scale of the second display device.
It should be noted that, in practical applications, different pixels in the same image frame may have different gray scale requirements, so that when performing gray scale control on the second display device, the second display device is actually controlled to perform the required gray scale information display on each pixel according to the gray scale value of each pixel extracted from the first display information, that is, the transmittance of the second display device is actually adjusted to the transmittance of each pixel of the second display device, and the transmittances of different pixels at the same time may be different.
The gray scale value range is generally 0-255, when the gray scale value is 0, the corresponding display effect is a pure black effect, when the gray scale value is 255, the corresponding pure transparent effect is provided, and any gray scale value between 0 and 255 presents the gray scale effect with different depth degrees (which can be understood as different transmittances for a perspective device).
That is, when the gray scale value of all the pixels of the second display device is controlled to be 255, the second display device is in a fully transparent state, so that the display effect of the composite display is the display effect of the original AR, when the gray scale value of all the pixels of the second display device is controlled to be 0, the second display device is in a fully black state, so that the composite display has the display effect of an immersive effect, i.e., VR, and when the second display device is controlled to switch between the fully transparent state and the fully black state, the composite display has the display switching effect from AR to VR.
The embodiment of the invention realizes the required transmittance control of the second display device by controlling the gray value of the second display device aiming at the condition that the second display device is a monochrome perspective display screen, thereby effectively realizing the dynamic transmittance control of the composite display.
EXAMPLE five
In this embodiment, a fifth possible implementation manner of the display control method is provided, where the method is used to perform display control on a first display device and a second display device in the composite display, and the implementation manner of this embodiment is suitable for a case where the second display device is a liquid crystal film, and referring to a flowchart of the display control method shown in fig. 6, the method may be implemented by the following steps:
And 703, adjusting the rotation direction of liquid crystal molecules in the liquid crystal film based on the first control information to enable the liquid crystal film to be in corresponding transmittance.
The implementation processes of step 701 and step 702 are similar to the implementation processes of step 601 and step 602 in the second embodiment, and specific reference may be made to the description of relevant parts in the second embodiment, which is not described in detail here.
The gradation information separated from the first display information substantially contains the gradation value of each pixel, and thus the first control information generated for controlling the transmittance of the second display device contains the gradation requirement information of each pixel in accordance with the separated gradation information.
On this basis, in step 703, in this embodiment, the driving circuit of the liquid crystal film is controlled through the gray level requirement information of each pixel included in the first control information, and the control signal (generally, a voltage signal) of each pixel of the liquid crystal film is adjusted by controlling the driving circuit, so that the electrode electric field of the liquid crystal molecules in each pixel of the liquid crystal film is adjusted, the liquid crystal molecules in the pixels are distorted differently along with the change of the electrode electric field, and thus the rotation direction of the liquid crystal molecules in each pixel of the liquid crystal film is changed, and finally, the transmittance of the liquid crystal film is adjusted by adjusting the rotation direction of the liquid crystal molecules in the liquid crystal film.
The embodiment of the invention aims at the condition that the second display device is the liquid crystal film, and realizes the required transmittance control of the second display device by adjusting the rotation direction of liquid crystal molecules in the liquid crystal film, thereby effectively realizing the dynamic transmittance control of the composite display.
EXAMPLE six
In a sixth embodiment, referring to a flowchart of the display control method shown in fig. 8, the display control method disclosed in each of the above embodiments may further include the following steps:
and step 504, when the transmittance of the second display device is reduced, increasing the brightness of the first display device.
Specifically, when the transmittance of the second display device is reduced, the luminance effect of the composite display can be reduced, and based on this, the luminance of the first display device is improved under the condition that the transmittance of the second display device is reduced, so that the luminance effect of the composite display cannot be adversely affected by the reduction of the transmittance, and better user experience can be ensured.
EXAMPLE seven
The seventh embodiment discloses a wearable device, which may specifically be a wearable device such as an AR head-mounted display, and with reference to the schematic structural diagram of the wearable device shown in fig. 9, the wearable device may include: the composite display 91 as provided in the above embodiments, and further comprising a fixing device 92 and a controller 93, wherein:
the composite display 91 is integrated on the fixture 92;
the fixing device 92 is used for fixing the wearable device to a predetermined part of a user, and when the wearable device is fixed to the predetermined part of the user, the composite display is located at a position opposite to the position of human eyes of the user, so that the user can view the display content of the composite display;
the controller 93 is used for controlling the first display device in the composite display 91 to perform corresponding display and controlling the second display device in the composite display 92 to be at different light transmittances.
Taking an AR headset as an example, the fixing device may specifically be a head-mounted fixing device for fixing on the head of a human body, referring to the product example of the AR headset shown in fig. 10, in the product example shown in fig. 10, the fixing device is specifically an eyeglass frame 101 of the AR eyeglasses.
The composite display is fixed on the fixing device, and the composite display comprises a first display device and a second display device which are overlapped with each other, in fig. 10, the first display device is specifically a lens 102, a layer of protective glass 103 is arranged outside the lens 102, when a second display device, such as a monochrome see-through LCD, is overlapped to the outside of the first display device (the lens 102) in the product example of fig. 10, the overlapped product form can specifically adopt any one of the following forms:
1) directly superposing a second display device on the outer side of the lens of the first display device, so that the whole lens 102 is the composite display obtained after superposing the first display device and the second display device;
2) the second display device forms a protective glass layer, the protective glass layer and the first display device have a certain distance, and the distance is smaller than a preset distance threshold value;
3) forming a protective glass layer on the second display device, wherein the protective glass layer is attached to the first display device;
4) the second display device is attached to the cover glass layer.
The controller may be integrated on the fixture, such as the AR glasses shown in fig. 10, with the controller 104 integrated on the frame 101 of the AR glasses.
The controller has a processing function corresponding to the display control method provided by each of the above embodiments of the present invention, and is configured to perform synchronous display control on the first display device and the second display device in the composite display, so that the composite display can perform the required scene image display and simultaneously can match and present the required transmittance.
According to the head-mounted device provided by the embodiment of the invention, the controller is adopted to perform required scene image display control on the first display device of the composite display and perform synchronous transmittance control on the second display device of the composite display, so that the transmittance of the composite display can be dynamically adjusted while the required image is displayed on the composite display, and the user experience is better.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
For convenience of description, the above system or apparatus is described as being divided into various modules or units by function, respectively. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (13)
1. A composite display, comprising: first display device and the second display device of coincide each other, wherein:
the first display device and the second display device are perspective display devices; the display module comprises an image source and a perspective optical carrier, wherein the perspective optical carrier is positioned at the side close to human eyes, and the image source is positioned at the other side opposite to the side close to the human eyes and far away from the human eyes; overlapping the second display device on one side, far away from human eyes, of an area in the visual field range of the human eyes of the perspective optical carrier, so that the first display device is arranged on one side close to the human eyes, and the second display device is arranged on one side far away from the human eyes;
the first display device is used for only displaying the color information of the picture image in the first display information to be displayed;
the second display device is used for displaying gray scale information obtained by carrying out gray scale component separation on the first display information to be displayed under the control of a control signal, so that the second display device is adjusted to be in the light transmittance corresponding to the gray scale information separated from the first display information;
the composite display transforms from an Augmented Reality (AR) effect to an immersive Virtual Reality (VR) effect when the gray scale value of the gray scale information displayed by the second display device changes from 255 to 0.
2. The composite display of claim 1, wherein the second display device is a monochrome see-through display screen.
3. The composite display of claim 1, wherein the second display device is a liquid crystal film.
4. The composite display of claim 1, wherein the first display device and the second display device are stacked together by a stacking method or an adhesive method, and the second display device is stacked on an outer side of the first display device, the outer side is: another side corresponding to a viewing side of a user when using the first display device; wherein:
when the first display device and the second display device are overlapped into a whole in an overlapping mode, the distance between the two overlapping surfaces corresponding to the first display device and the second display device is smaller than a preset distance threshold value.
5. A display control method for performing display control of the composite display according to any one of claims 1 to 4; the method comprises the following steps:
acquiring first display information, and controlling the first display device to only display color information of a picture image in the first display information to be displayed;
obtaining first control information, wherein the first control information is used for controlling the transmittance of the second display device;
controlling the second display device to display gray scale information obtained by performing gray scale component separation on the first display information to be displayed according to the first control information, so that the second display device is adjusted to be in the transmittance corresponding to the gray scale information separated from the first display information; the display module comprises an image source and a perspective optical carrier, wherein the perspective optical carrier is positioned at the side close to human eyes, the image source is positioned at the other side opposite to the side close to the human eyes and far away from the human eyes, and the second display device is superposed at one side far away from the human eyes in the area within the visual field range of the human eyes of the perspective optical carrier, so that the first display device is arranged at one side close to the human eyes, and the second display device is arranged at one side far away from the human eyes;
the composite display is transformed from an augmented display AR effect to an immersive virtual reality VR effect when the grey value of the grey scale information displayed by the second display device changes from 255 to 0.
6. The method of claim 5, wherein the obtaining the first control information comprises:
obtaining gray scale information to be displayed from the first display information;
generating the first control information for controlling the transmittance of the second display device based on the gradation information.
7. The method according to claim 6, wherein the obtaining the gray scale information to be displayed from the first display information comprises:
a grayscale component is separated from the first display information, the grayscale component including a grayscale value.
8. The method of claim 7, wherein when the second display device is a monochrome see-through display screen, the adjusting the transmittance of the second display device comprises:
and adjusting the transmittance of the second display device by adjusting the gray value of the second display device.
9. The method of claim 5, wherein when the second display device is a liquid crystal film, the adjusting the transmittance of the second display device comprises:
and adjusting the rotation direction of liquid crystal molecules in the liquid crystal film based on the first control information so that the liquid crystal film is in corresponding transmittance.
10. The method according to any one of claims 5-9, further comprising:
increasing the brightness of the first display device when the transmittance of the second display device decreases.
11. A wearable device comprising the composite display of any of claims 1-4, and comprising a fixture, a controller, wherein:
the composite display is integrated on the fixture;
the fixing device is used for fixing the wearable device on a preset part of a user, and when the wearable device is fixed on the preset part of the user, the position of the composite display is opposite to the position of human eyes of the user, so that the user can watch the display content of the composite display;
the controller is used for controlling the first display device in the composite display to perform corresponding display and controlling the second display device in the composite display to be in different light transmittances.
12. The wearable device of claim 11, further comprising a protective layer disposed outside of a first display device in the composite display, the second display device disposed on the protective layer, wherein the outside is: the other side corresponding to the viewing side of the user when using the first display device.
13. The wearable device of claim 12, wherein the second display is the protective layer.
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| DE102017212912B4 (en) | 2017-07-27 | 2022-08-18 | Audi Ag | Display device for a motor vehicle, method for operating a display device, control device, and motor vehicle |
| WO2019120525A1 (en) * | 2017-12-20 | 2019-06-27 | Ecole Polytechnique Federale De Lausanne (Epfl) | Method of displaying an image on a see-through display |
| CN108681164B (en) * | 2018-05-16 | 2021-04-27 | 京东方科技集团股份有限公司 | Display device and display method thereof |
| CN113763895B (en) * | 2021-06-04 | 2023-02-10 | 巽腾(广东)科技有限公司 | Display screen control method, device, equipment and storage medium |
| TWI835239B (en) * | 2022-08-08 | 2024-03-11 | 虹彩光電股份有限公司 | Cholesteric liquid crystal composite display device |
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