Wearable display device and host device

Abstract

The present application discloses a wearable display device and a host device. The wearable display device comprises a wearable body; a processing unit is integrated on the wearable body; the wearable body is provided with a display interface and a display unit; and the processing unit is connected to the display unit by means of the display interface. The processing unit is used for performing communication interaction conforming to a DP alternate mode protocol with the host device when the wearable display device is connected to the host device by means of the display interface, determining a target display format of the wearable display device, and lighting up the display unit on the basis of the target display format.

Description

Wearable display device and host device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on October 31, 2023, with application number 202311445184.8, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of artificial intelligence technology, and in particular to a wearable display device and a host device. Background Art

[0004] The essence of the multi-function Type-C host interface is to configure the lines of the USB (Universal Serial Bus) interface and the DP (DisplayPort) in the same Type-C interface. In order to flexibly call the interface and prevent the Type-C from being inserted in reverse, a multiplexer (hereinafter referred to as MUX) is usually added to the interface to arrange the physical lines of the USB and DP signals to the Type-C interface. As shown in Figure 1, a USB-PD Controller (USB Power Delivery Controller, USB interface power management controller, referred to as USB-PD controller) can be added to control the MUX (Multiplexer). At the same time, the USB-PD controller can communicate with the PD controller of downstream wearable display devices such as AR glasses. After the two PD controllers have confirmed the communication, they can control the MUX to configure the order of the output lines according to the DP Alternate Mode confirmed by the communication.

[0005] Currently, wearable display devices such as AR glasses mostly use the multi-functional Type-C interface to connect to the host device. After the wearable display device is connected to different hosts such as mobile phones, Rokid Station, and laptops, it will be configured with the default display format. The host will output the corresponding image to the wearable display device according to this default display format. If you need to switch to another display format, you need to send a command or manually configure it on the wearable display device. The wearable display device screen lighting delay is more than 6 seconds, which significantly increases the display lighting delay and system complexity, thus affecting the user experience.

[0006] Summary of the Invention

[0007] In order to solve the above-mentioned problems existing in the prior art, the embodiments of the present application provide a wearable display device and a host device.

[0008] According to the first aspect of the present application, a wearable display device is provided, which includes a wearable body, a processing unit integrated on the wearable body, the wearable body having a display interface and a display unit, the display unit including two display screens corresponding to the user's left eye and right eye respectively, and the processing unit being connected to the display interface and the display unit respectively; wherein the processing unit is used to communicate and interact with the host device in accordance with the DP Alternate Mode protocol when a power supply connection is generated after the wearable display device is connected to the host device through the display interface and before the display unit is lit, determine the target display format of the wearable display device, and light up the display unit according to the target display format.

[0009] According to one embodiment of the present application, the processing unit includes: a parameter determination module, which is used to communicate and interact with the host device in accordance with the DP Alternate Mode protocol to determine the target display format of the wearable display device, and the target display format includes multiple display parameters; an interface training module, which is used to perform display interface training with the host device; and a lighting module, which is used to light up the display unit according to the target display format after completing the display interface training.

[0010] According to one embodiment of the present application, the parameter determination module is also used to determine the working mode of the wearable display device; accordingly, the parameter determination module includes: a first receiving submodule, used to receive a discovery mode command sent by a host device; a first sending submodule, used to send a mode confirmation instruction to the host device, and the mode confirmation instruction carries multiple working modes supported by the wearable display device.

[0011] According to one embodiment of the present application, the parameter determination module also includes: a second receiving submodule, used to receive a discovery attribute command sent by the host device before receiving the discovery mode command sent by the host device; a second sending submodule, used to send an attribute confirmation instruction to the host device, and the attribute confirmation instruction carries the attributes of the wearable display device.

[0012] According to one embodiment of the present application, the parameter determination module also includes: a third receiving submodule, used to receive a discovery identification command sent by the host device before the attribute confirmation instruction is sent to the host device; a third sending submodule, used to send an identification confirmation instruction to the host device.

[0013] According to one embodiment of the present application, the parameter determination module also includes: a fourth receiving sub-module, which is used to receive a mode entry command sent by the host device after the mode confirmation instruction is sent to the host device, and the mode entry command carries the specified working mode specified by the host device for the wearable display device to enter; a fourth sending sub-module, which is used to send an entry mode confirmation instruction to the host device; a fifth receiving sub-module, which is used to receive a display interface capability message sent by the host device after the entry mode confirmation instruction is sent to the host device; a fifth sending sub-module, which is used to send a display confirmation instruction to the host device; the sending of the display confirmation instruction indicates that the communication interaction that complies with the DP Alternate Mode protocol is completed.

[0014] According to one embodiment of the present application, the interface training module includes: an attention sub-module, which sends an attention message to the host device when completing the communication interaction that complies with the DP Alternate Mode protocol; and a training sub-module, which performs display interface training with the host device when the host device completes reading the extended display identification data of the wearable display device in response to the attention message.

[0015] According to one embodiment of the present application, the wearable display device is AR glasses.

[0016] According to one embodiment of the present application, the wearable body includes a frame and / or temples; wherein the processing unit is integrated in the frame or the temples; the display interface is configured at the tail of the temples; and the display unit is configured in the frame.

[0017] According to the second aspect of the present application, a host device is also provided, which is connected to the wearable display device through the display interface of the wearable display device, and the wearable display device is also configured with a processing unit and a display unit, and the display unit includes two display screens corresponding to the user's left eye and right eye respectively; the host device is used to communicate and interact with the wearable display device in accordance with the DP Alternate Mode protocol when a power connection is generated after the wearable display device is connected to the host device through the display interface and before the display unit is lit, to determine the target display format of the wearable display device.

[0018] In the wearable display device and host device of the embodiment of the present application, the wearable display device includes a wearable body, a processing unit is integrated on the wearable body, the wearable body has a display interface and a display unit, and the processing unit is connected to the display interface and the display unit respectively. Wherein, the processing unit is used to perform communication interaction with the host device in accordance with the DP Alternate Mode protocol when the wearable display device is connected to the host device through the display interface to determine the target display configuration of the wearable display device, and light up the display unit according to the target display configuration. In this way, the processing unit for the wearable display device can define different target display configurations according to the needs of the host device, such as initialization resolution format. By configuring the resolution format of the glasses in the initialization stage, the wearable display device can be lit at the target display resolution format at the fastest speed, effectively shortening the lighting time of the wearable display device and significantly improving the user experience.

[0019] It should be understood that the teachings of this application do not necessarily achieve all of the beneficial effects described above, but that specific technical solutions can achieve specific technical effects, and other embodiments of this application can also achieve beneficial effects not mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an illustrative and non-limiting manner, in which:

[0021] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0022] FIG1 is a schematic diagram showing a circuit principle of adding a power management controller to realize control of a display interface in the prior art;

[0023] FIG2 is a schematic diagram showing the structure of a wearable display device according to an embodiment of the present application;

[0024] FIG3 is a schematic diagram showing a VDO field in an Enter Mode command according to an embodiment of the present application;

[0025] FIG4 is a schematic diagram showing an implementation process of parameter configuration of a wearable display device according to an embodiment of the present application;

[0026] Figure 5 shows a schematic diagram of the comparison results between the lighting time of the wearable display device in the embodiment of the present application and the lighting time of the wearable display device in the prior art. DETAILED DESCRIPTION

[0027] The principles and spirit of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided solely to enable those skilled in the art to better understand and implement the present application, and are not intended to limit the scope of the present application in any way. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0028] The technical solution of the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] FIG2 shows a schematic diagram of the composition structure of a wearable display device according to an embodiment of the present application.

[0030] With reference to FIG2 , the wearable display device 10 of the embodiment of the present application may include a wearable body 100, on which a processing unit 101 is integrated, the wearable body 100 having a display interface 102 and a display unit 103, the display unit 103 including two display screens corresponding to the left eye and the right eye of the user (not shown in the figure), and the processing unit 101 is connected to the display interface 102 and the display unit 103 respectively. Among them, the processing unit 101 is used to communicate and interact with the host device 20 in accordance with the DP Alternate Mode protocol when the wearable display device 10 is connected to the host device 20 through the display interface 102 and a power connection is generated, and before the display unit 103 is lit, to determine the target display format of the wearable display device 10 and to light up the display unit 103 according to the target display format.

[0031] It should be pointed out that the power supply connection generated after the wearable display device 10 is connected to the host device 20 through the display interface 102 means that after the wearable display device 10 is inserted into the host device 20 through the display interface 102, it is necessary to first establish a connection based on the PD (Power Delivery) protocol, and then the host device 20 supplies power to the wearable display device 10.

[0032] In one embodiment of the present application, if the wearable display device 10 fails to interact with the host device 20, the display unit 103 of the wearable display device 10 is lit according to the default display format.

[0033] The above-mentioned unsuccessful interaction means that after either the wearable display device 10 or the host device 20 sends a message to the other, no message from the other is received within the set time. The set time here can be set according to actual needs, and this application does not make specific requirements for this.

[0034] In one embodiment of the present application, a display format can be understood as a combination of multiple display parameters, such as resolution and refresh rate. Different display formats may contain the same or different display parameters, and the values ​​of the same display parameter in different display formats may be the same or different. Taking resolution and refresh rate as an example, a default display format may include a resolution of 1920x1080 and a refresh rate of 60Hz, and a target display format may include a resolution of 3840*1080 and a refresh rate of 120Hz. This is merely an example and is not a limitation of this application.

[0035] In one embodiment of the present application, the wearable display device 10 may be AR (Augmented Reality) glasses. The display interface 102 may be a multi-function Type-C interface.

[0036] In one embodiment of the present application, when the wearable display device 10 is an AR glasses, the wearable body 100 may further include a frame (not shown) and temples (not shown). The processing unit 101 may be integrated into the frame or temples, the display interface 102 may be configured at the end of the temples, and the display unit 103 may be configured in the frame.

[0037] In the prior art, after the host device and the wearable display device are connected, the display parameters such as the resolution and refresh rate of the wearable display device are initialized according to the default display format, and then the host device and the wearable display device are trained. In an embodiment of the present application, according to the characteristics that the resolutions of the pictures or videos output by different host devices are different, it is proposed that the wearable display device and the host device perform information interaction in accordance with the DP Alternate Mode protocol to determine the target display format of the wearable display device. For example: if the host device is a max pro host device developed by a set manufacturer, after the host device is connected to the wearable display device, the target display format of the wearable display device can be set to 3840x1200@90Hz (i.e., the resolution is 3840x120 and the refresh rate is 90Hz); if the host device is a smart phone terminal, then after the smart phone terminal is connected to the wearable display device, the target display format of the wearable display device can be set to 1920x1080@60Hz (i.e., the resolution is 1920x1080 and the refresh rate is 60Hz).

[0038] In one embodiment of the present application, the processing unit 101 includes a parameter determination module (not shown), an interface training module (not shown), and a lighting module (not shown). The parameter determination module is used to communicate with the host device 20 in accordance with the DP Alternate Mode protocol to determine the target display format of the wearable display device 10. The interface training module is used to train the display interface 102 with the host device 20; the lighting module is used to illuminate the display unit 103 according to the target display format after completing the training of the display interface 102.

[0039] It should be noted that the processing unit 101 in this application can be newly added hardware to the wearable display device, or the functions of the processing unit 101 in this application can be configured in the existing hardware of the wearable display device. In addition, in the following module configuration of the processing unit 101, the multiple modules included in the processing unit 101 can be independently configured data processing chips, or multiple modules can be configured in the same data processing chip.

[0040] In one embodiment of the present application, the parameter determination module is further used to determine the operating mode of the wearable display device 10. Accordingly, the parameter determination module includes a first receiving submodule and a first sending submodule. The first receiving submodule is used to receive a discovery mode (Discover Modes) command sent by the host device 20. The first sending submodule is used to send a mode confirmation instruction (Discover Modes Ack) to the host device 20, and the mode confirmation instruction carries multiple operating modes supported by the wearable display device 10.

[0041] For example, the operating mode may include a standard mode and a custom mode. The standard mode is the operating mode that the display interface 102 enters after the wearable display device 10 is initialized, such as the USB mode. The custom mode may be indicated as 0xff01 in the Discover Modes Ack, indicating Mode#1 (operating mode 1), specifically indicating that the display interface 102 of the wearable display device supports the Display Port mode.

[0042] In one embodiment of the present application, the parameter determination module further includes a second receiving submodule and a second sending submodule. The second receiving submodule is configured to receive a discovery attribute command sent by the host device 20 before receiving a discovery mode command sent by the host device 20. The second sending submodule is configured to send an attribute confirmation instruction to the host device 20, the attribute confirmation instruction carrying the attributes of the wearable display device 10.

[0043] For example, the attribute here may include information such as a device identification or a device code of the wearable display device 10. For example, the attribute discovery command may be Discover Identity, and correspondingly, the attribute confirmation instruction may be Discover Identity Ack.

[0044] In one embodiment of the present application, the parameter determination module further includes: a third receiving submodule for receiving a discovery identification command sent by the host device 20 before the attribute confirmation command is sent to the host device 20; and a third sending submodule for sending the identification confirmation command to the host device 20. The discovery identification command is used to specify the operating mode to the wearable display device 10 and may carry a Standard ID or Vendor IDs. The Standard ID may be represented by 0xff00 to indicate a standard mode (e.g., USB mode), and the Vendor IDs may be represented by 0xff01 to indicate a custom mode (e.g., Display Port mode).

[0045] For example, the discovery identification command may be Discover SVIDs (Discover Standard or Vendor IDs), and correspondingly, the identification confirmation instruction may be Discover SVIDs Ack.

[0046] In one embodiment of the present application, the parameter determination module further includes a fourth receiving submodule, a fourth sending submodule, a fifth receiving submodule and a fifth sending submodule. Among them, the fourth receiving submodule is used to receive the mode entry command sent by the host device 20 after the mode confirmation instruction is sent to the host device 20, and the mode entry command carries the working mode specified by the host device 20 for the wearable display device 10 to enter. The fourth sending submodule is used to send the entry mode confirmation instruction to the host device 20. The fifth receiving submodule is used to receive the display interface capability message sent by the host device 20 after the entry mode confirmation instruction is sent to the host device 20. The fifth sending submodule is used to send a display confirmation instruction to the host device 20. The sending of the display confirmation instruction indicates that the communication interaction in accordance with the DP Alternate Mode protocol is completed.

[0047] For example, after the wearable display device 10 sends the Discover Modes ACK to the host device 20, the host device 20 can send a mode entry (Enter Mode) command to the wearable display device 10. Since the host device 20 has sent the working mode identifier (Standard ID or Vendor IDs) to the wearable display device 10 through Discover SVIDs before receiving the Discover Modes ACK, it is equivalent to specifying the working mode. Therefore, here, when the host device 20 sends the Enter Mode command, the wearable display device 10 can be required to enter the working mode specified by Discover SVIDs through the Enter Mode command. The working mode here has the same meaning as the above-mentioned working mode, and can also include standard mode and custom mode. The standard mode can be shown as 0xff00 in the interaction information between the host device 20 and the wearable display device 10, and the custom mode can be shown as 0xff01 in the interaction information between the host device and the wearable display device. Of course, it can also be defined according to actual needs.

[0048] In one embodiment of the present application, before the host device 20 reads the EDID (Extended Display Identification Data) parameters of the wearable display device 10, the display parameters (i.e., target display format) such as the resolution and refresh rate supported by the host device 20 are sent to the wearable display device 10. When the host device 20 sends an Enter Mode command to the wearable display device 10, the target display format is added to the Enter Mode command. The wearable display device 10 generates corresponding EDID information for the host device 20 to read based on the target display format. The EDID information may include the target display format (resolution, refresh rate, etc.) and may also include performance parameters of the display unit 103 of the wearable display device 10, such as: vendor information, maximum image size, color settings, manufacturer presets, frequency range restrictions, and character strings of the display name and serial number.

[0049] Here, referring to Figure 3, the transmission of the target display format can be achieved by adding a VDO field in the Enter Mode command. Specifically, the definition of the VDO (Vendor Defined Data Object) field added in the Enter Mode command can be referred to in Table 1 below.

[0050] Table 1 VDO field example

[0051] In one embodiment of the present application, the display interface capability message can indicate whether the host device 20 is a receiver or a transmitter, whether it supports USB 2.0, and the supported Type-C pin assignments. Here, the display interface capability message can be a DP Configure (Display Port Configure) message. Correspondingly, the display confirmation instruction can be a DP Configure Ack.

[0052] In one embodiment of the present application, the interface training module may include an attention submodule and a training submodule. The attention submodule sends an attention message to the host device 20 upon completion of communication interaction in accordance with the DP Alternate Mode protocol. The training submodule performs display interface training with the host device 20 upon completion of EDID reading of the wearable display device 10 in response to the attention message.

[0053] For example, the processing unit 101 of the wearable display device 10 completes the display parameter configuration of the wearable display device after a series of operations based on the various sub-modules of the above-mentioned parameter determination module (that is, after the host device 20 receives the DP Configure Ack). At this time, the wearable display device 10 can send an Attention message to the host device 20. Attention can include information such as HPD (Hot plug Detect, hot plug discovery status), which is used to declare to the host device 20 that the wearable display device 10 has completed the display parameter configuration (that is, the target display format has been determined). In response to the attention message, the host device 20 can read information such as the EDID of the wearable display device 10 and perform Display Port training with the wearable display device 10.

[0054] In one embodiment of the present application, before lighting up the display unit 103 of the wearable display device 10, the host device 20 performs Display Port training with the wearable display device 10. After the Display Port training is successful, the host device 20 needs to read the EDID information of the display unit 103 of the wearable display device 10 through AUX (Auxiliary, audio and video interface), including the target display format and other contents, and send the data that needs to be displayed by the display unit 103 to the display unit 103 through AUX.

[0055] It should be noted that the above is only an exemplary description of the present application. The various modules of the processing unit 101 can also be divided according to actual needs, as long as they can perform corresponding operations and realize corresponding functions. Specifically, the processing unit 101 can refer to the display parameter configuration process of the wearable display device shown in Figure 4 to make a reasonable functional module division, and configure the divided functions in one or more chips.

[0056] As shown in FIG4 , in this embodiment of the present application, the wearable display device is an AR glasses, and the display parameter configuration of the wearable display device may include at least the following operation process:

[0057] In operation S1, the host device (station Pro) sends Discover Identity to the AR glasses (max pro).

[0058] In operation S2 , the AR glasses send a Discover Identity Ack to the host device.

[0059] In operation S3, the host device sends Discover CVIDs to the AR glasses. It should be noted that the host device can send Discover CVIDs before receiving the Discover Identity Ack in operation S2.

[0060] In operation S4 , the AR glasses send a Discover SVIDs Ack to the host device.

[0061] In operation S5 , the host device sends Discover Modes to the AR glasses.

[0062] In operation S6 , the AR glasses send a Discover Modes Ack to the host device.

[0063] In operation S7 , the host device sends an Enter Modes message to the AR glasses.

[0064] In operation S8 , the AR glasses send an Enter Modes Ack to the host device.

[0065] In operation S9 , the host device sends a DP Configure (display port configuration) command to the AR glasses.

[0066] In operation S10, the AR glasses send a DP Configure Ack (display interface configuration confirmation) command to the host device. At this point, the communication interaction in accordance with the DP Alternate Mode protocol is completed.

[0067] In operation S11 , the AR glasses send Attention to the host device.

[0068] It should be noted that the specific implementation details of operations S1 to S11 can be referred to the functional description of each module of the processing unit 101, which will not be repeated here.

[0069] FIG5 is a schematic diagram showing a comparison of the lighting time of a wearable display device according to an embodiment of the present application and a wearable display device in the prior art. Referring to FIG5 , the wearable display device may be AR glasses (referred to as glasses in the figure). This application flexibly defines the target display format of the wearable display device, such as resolution and refresh rate, during the initialization phase of the wearable display device, based on the needs of the host device. This allows the wearable display device to light up the screen in the target display format at the fastest speed, shortening the lighting time of the wearable display device when plugged into the host device from approximately 7 seconds to 2 seconds, significantly improving the user experience.

[0070] In the wearable display device and host device of the embodiment of the present application, the wearable display device includes a wearable body, a processing unit is integrated on the wearable body, the wearable body has a display interface and a display unit, and the processing unit is connected to the display interface and the display unit respectively. Among them, the processing unit is used to communicate and interact with the host device in accordance with the DP Alternate Mode protocol when the wearable display device is connected to the host device through the display interface, determine the target display format of the wearable display device, and light up the display unit according to the target display format. In this way, the processing unit of the wearable display device can define different target display formats according to the needs of the host device, such as resolution and / or refresh rate. By configuring the target display format of the glasses in the initialization stage, the wearable display device can light up the screen at the fastest speed, effectively shorten the screen lighting time, and significantly improve the user experience.

[0071] Similarly, based on the above wearable display device, an embodiment of the present application also provides a host device, which is connected to the wearable display device through the display interface of the wearable display device. The wearable display device is also configured with a processing unit and a display unit, and the display unit includes two display screens corresponding to the user's left eye and right eye respectively; the host device is used to communicate and interact with the wearable display device in accordance with the DP Alternate Mode protocol when a power connection is established after the wearable display device is connected to the host device through the display interface and before the display unit is lit, to determine the target display format of the wearable display device.

[0072] It should be noted here that the above description of the host device embodiment is similar to the description of the wearable display device embodiment shown in Figures 1 to 5 above. The wearable display device is a device that outputs the audio and video data of the host device to the user. The host device has similar beneficial effects as the wearable display device embodiment shown in Figures 1 to 5 above, so it will not be described in detail. For technical details not disclosed in the host device embodiment of this application, please refer to the description of the wearable display device embodiment shown in Figures 1 to 5 above for understanding. To save space, it will not be described in detail.

[0073] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0075] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0076] In addition, all functional units in the embodiments of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above-mentioned integrated units can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0077] Those skilled in the art will understand that all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), magnetic disks or optical disks, and other media that can store program codes.

[0078] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods of each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0079] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wearable display device, comprising a wearable body, a processing unit integrated on the wearable body, the wearable body having a display interface and a display unit, the display unit comprising two display screens corresponding to a left eye and a right eye of a user, respectively, and the processing unit being connected to the display interface and the display unit respectively; in, The processing unit is used to communicate and interact with the host device in accordance with the DP Alternate Mode protocol when the wearable display device is connected to the host device through the display interface and a power connection is established, and before the display unit is lit, to determine the target display format of the wearable display device, and to light up the display unit according to the target display format.

2. The wearable display device according to claim 1, wherein the processing unit comprises: A parameter determination module, configured to perform communication interaction with a host device in accordance with the DP Alternate Mode protocol, and determine a target display format of the wearable display device, wherein the target display format includes a plurality of display parameters; An interface training module, used for performing display interface training with the host device; A lighting module is used to light up the display unit according to the target display format after completing the display interface training.

3. The wearable display device according to claim 2, wherein the parameter determination module is further used to determine the working mode of the wearable display device; correspondingly, The parameter determination module comprises: A first receiving submodule, configured to receive a discovery mode command sent by a host device; The first sending submodule is used to send a mode confirmation instruction to the host device, and the mode confirmation instruction carries multiple operating modes supported by the wearable display device.

4. The wearable display device according to claim 3, wherein the parameter determination module further comprises: A second receiving submodule, configured to receive a discovery attribute command sent by the host device before receiving the discovery mode command sent by the host device; The second sending submodule is used to send an attribute confirmation instruction to the host device, and the attribute confirmation instruction carries the attributes of the wearable display device.

5. The wearable display device according to claim 4, wherein the parameter determination module further comprises: A third receiving submodule, configured to receive a discovery identification command sent by the host device before the attribute confirmation instruction is sent to the host device; The third sending submodule is used to send an identification confirmation instruction to the host device.

6. The wearable display device according to claim 3, wherein the parameter determination module further comprises: a fourth receiving submodule, configured to receive a mode entry command sent by the host device after the mode confirmation instruction is sent to the host device, wherein the mode entry command carries the working mode specified by the host device for the wearable display device to enter; A fourth sending submodule, used for sending an entry mode confirmation instruction to the host device; a fifth receiving submodule, configured to receive a display interface capability message sent by the host device after the entry mode confirmation instruction is sent to the host device; A fifth sending submodule, used for sending a display confirmation instruction to the host device; The sending of the display confirmation instruction indicates that the communication interaction conforming to the DP Alternate Mode protocol is completed.

7. The wearable display device according to claim 2, wherein the interface training module comprises: An attention submodule, when completing the communication interaction conforming to the DP Alternate Mode protocol, sends an attention message to the host device; A training submodule performs display interface training with the host device when the host device completes reading of the extended display identification data of the wearable display device in response to the attention message.

8. The wearable display device according to any one of claims 1 to 7, wherein the wearable display device is AR glasses.

9. The wearable display device according to claim 8, The wearable body includes a frame and / or temples; in, The processing unit is integrated into the frame or the temple; The display interface is configured at the tail of the temple; The display unit is configured in the frame.

10. A host device, the host device is connected to the wearable display device through a display interface of the wearable display device, the wearable display device is further configured with a processing unit and a display unit, the display unit includes two display screens corresponding to the left eye and the right eye of the user respectively; The host device is used to communicate and interact with the wearable display device in accordance with the DP Alternate Mode protocol when a power supply connection is established after the wearable display device is connected to the host device through the display interface and before the display unit is lit, so as to determine the target display format of the wearable display device.

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