CN117975819A - Folding apparatus, vehicle, display method, and storage medium - Google Patents

Folding apparatus, vehicle, display method, and storage medium Download PDF

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Publication number
CN117975819A
CN117975819A CN202410015240.2A CN202410015240A CN117975819A CN 117975819 A CN117975819 A CN 117975819A CN 202410015240 A CN202410015240 A CN 202410015240A CN 117975819 A CN117975819 A CN 117975819A
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China
Prior art keywords
light field
screen
content image
folding
display
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CN202410015240.2A
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Chinese (zh)
Inventor
邓鑫
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Wuhan Xingji Meizu Technology Co ltd
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Wuhan Xingji Meizu Technology Co ltd
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Priority to CN202410015240.2A priority Critical patent/CN117975819A/en
Publication of CN117975819A publication Critical patent/CN117975819A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • 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
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

The application discloses folding equipment, a vehicle, a display method and a storage medium, which belong to the technical field of image display, and the folding equipment provided by the embodiment of the application comprises: a flexible display screen for displaying a content image; the light field screen is arranged on the back of the flexible display screen and is used for receiving the content image transmitted by the folding equipment and projecting the content image to the outside, wherein when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than that of the content image displayed on the light field screen.

Description

Folding apparatus, vehicle, display method, and storage medium
Technical Field
The present application relates to the field of image display technologies, and in particular, to a folding apparatus, a vehicle, a display method, and a storage medium.
Background
Currently, with the development of science and technology, more and more users have vehicles and folding electronic devices adopting a folding screen design manner, and some vehicles also have a function of a Head-Up Display (HUD).
However, the installation of the HUD function requires additional investment costs, and a scheme capable of directly multiplexing the folding electronic device to realize the projection function is also lacking at present.
Disclosure of Invention
The application provides a folding apparatus, a vehicle, a display method, and a storage medium.
In a first aspect, the present application provides a folding apparatus comprising:
A flexible display screen;
The light field screen is arranged on the back of the flexible display screen and is used for receiving the content image transmitted by the folding equipment and projecting the content image to the outside, wherein when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than that of the content image displayed on the light field screen.
In some embodiments, the flexible display screen includes a first display area and a second display area, the folding device further comprising:
The folding component is used for adjusting the angle between the first display area and the second display area and adjusting the projection angle of the light field screen based on the angle;
and activating the light field screen based on the angle being less than a set threshold.
In some embodiments, the light field screen comprises:
A display panel for displaying the content image transmitted based on the folding apparatus;
and the micro lens array is arranged on the display panel and is used for projecting the content image displayed by the display panel to the outside after the propagation direction of the content image is adjusted by the micro lens array.
In some embodiments, the microlens array comprises a multi-layer microlens array, and the microlenses in each microlens array are arranged in a focal plane array.
In a second aspect, the present application provides a vehicle comprising:
a front windshield on which a head-up display area is formed;
The folding apparatus of any one of the above embodiments, wherein the content image projected through the light field screen is displayed in the heads-up display area.
In a third aspect, the present application provides a display method applied to a folding apparatus, the folding apparatus including a flexible display screen, the method comprising:
Transmitting the content image to a light field screen arranged on the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches a display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
In some embodiments, the method further comprises:
Adjusting a projection angle of the light field screen based on a folding component of the folding device, wherein the folding component is used for adjusting an angle between a first display area and a second display area of the flexible display screen;
And activating the light field screen based on the angle being less than a set threshold.
In some embodiments, the method further comprises:
the display panel of the light field screen displays the content image transmitted by the folding equipment;
And adjusting the propagation direction of the content image displayed by the display panel through the micro lens array of the light field screen, and then projecting the content image to the outside.
In some embodiments, the microlens array comprises a multi-layer microlens array, and the microlenses in each microlens array are arranged in a focal plane array.
In a fourth aspect, the present application provides a folding apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method as described in any one of the preceding claims when executing the program.
In a fifth aspect, the application provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described in any of the above.
In a sixth aspect, the application provides a computer program product comprising a computer program which, when executed by a processor, implements a method as described in any of the above.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a folding apparatus according to an embodiment of the present application;
FIG. 2 is a second schematic structural view of a folding apparatus according to an embodiment of the present application;
fig. 3 is a schematic cross-sectional view of a display panel integrated with a microlens array in a folding apparatus according to an embodiment of the present application;
FIG. 4 is a top view of an exemplary monochrome display panel with a square array layout of pixels integrated with a spherical microlens array in a folding device according to one embodiment of the present application;
FIG. 5 provides a schematic view of a focal plane array in a folding apparatus according to one embodiment of the application;
FIG. 6 is a third schematic structural view of a folding apparatus according to an embodiment of the present application;
FIG. 7 is a flow chart of a display method according to an embodiment of the application;
Fig. 8 is a schematic physical structure of a folding device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
With the development of science and technology, more and more users have vehicles and folding electronic devices adopting a folding screen design mode, and some vehicles also have a function of a Head-Up Display (HUD).
However, the installation of the HUD function requires additional investment costs, and a scheme capable of directly multiplexing the folding electronic device to realize the projection function is also lacking at present.
Therefore, the application provides folding equipment, a vehicle, a display method and a storage medium, and the different functions of the front and back screens of the folding equipment such as a mobile phone are utilized, and the display of front information and the large-size projection of back content can be realized by combining the conventional screen technology and the light field screen technology, for example, a user can project the navigation, video, music and other contents on the mobile phone to the front windshield of the vehicle through the light field screen on the back side, so that the effect of enhancing the actual head up display (AR-HUD) is realized, the navigation, video and other contents are clearly displayed, and the user experience is effectively improved.
In some embodiments, the folding technique is a technique that can fold a device having a display screen. With the rise of intelligent devices, the folding technology can be applied to devices such as intelligent mobile phones and tablet computers. The folding operation is carried out on the equipment through the folding technology, so that a user can use the equipment with a larger screen and meanwhile the carrying problem of the equipment can be solved. By folding the device, the width or length of the folding device may be reduced, facilitating the folding device to be incorporated into a narrower storage space, or facilitating the folding device to be incorporated into a smaller storage space. For example, after the folding device is folded according to the width direction, the folding device can be placed in a storage space such as a pocket with the width of only 1/2 of the width of the folding device, or the folding device is more convenient for a user to hold by one hand. After the folding equipment is folded along the length direction, the folding equipment can be placed in storage spaces such as short pockets and the like, and can not fall down easily.
The folding apparatus, the vehicle, the display method and the storage medium provided by the embodiment of the application are specifically described below.
An embodiment of the present application provides a folding apparatus, fig. 1 is one of schematic structural diagrams of the folding apparatus provided in an embodiment of the present application, and as shown in fig. 1, there is provided a folding apparatus 100, including:
A flexible display screen 10;
and a light field screen 20 disposed on the back of the flexible display screen, for receiving the content image transmitted by the folding device and projecting the content image to the outside, wherein when the content image projected through the light field screen reaches the display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
Specifically, the folding device may include a flexible display screen that may be folded and a light field screen, where the flexible display screen may be disposed on a front surface of the folding device, and the light field screen may be disposed on a back surface of the folding device, and may also be understood as being disposed on a back surface of the flexible display screen, where the flexible display screen is used for normally displaying content images, for example, providing an interactive interface for a user, playing video, etc., and the light field screen is used for performing larger-size projection on the same content image or different content images transmitted by the folding device and displayed by the flexible display screen.
It will be appreciated that the light field screen may be a separate screen from the flexible display screen, and the content displayed on the light field screen may be the same as or different from the flexible display screen, which is not a limitation of the present application.
In some embodiments, the flexible display screen may be implemented by conventional screen technology, such as Active-matrix Organic Light-Emitting Diode (AMOLED) or Organic Light-Emitting Diode (OLED).
It should be noted that the light field screen is implemented by a light field screen technology, which relies on an array of microlenses, each of which serves to focus and adjust the propagation of light rays so as to form an image at a specific viewing angle and depth. For folding devices, the adjustment and correction of the light rays occurs on an array of microlenses on the opposite screen (light field screen), which includes a large number of microlenses arranged in a close array that allow the propagation of the light rays to be controlled to project the image to a designated location, the diameter and shape of each microlens being likely to vary depending on the system design to meet specific requirements.
It will be appreciated that the display device described above may refer to a device within an enclosed or open space that can receive and carry an image of content, such as a projected curtain, a front windshield of a vehicle window, or other transparent glass, and is not limiting of the application.
In some embodiments, the flexible display screen and the light field screen of the folding device can be opened at a system level, so that information transmission and interaction between the front main screen (flexible display screen) and the back projection screen (light field screen) can be realized.
Taking the folding device as an example of a folding mobile phone, the two screens can be opened at a System level through the driving of an Operating System (OS) of a mobile phone System, so as to realize information transmission and interaction between the flexible display screen and the light field screen.
In some examples, the content of the folded mobile phone can be transmitted to the front flexible display screen and the back light field screen through a display screen serial interface (DISPLAYSERIAL INTERFACE, DSI), for example, content images are transmitted between a processor inside the folded mobile phone and the flexible display screen and the light field screen through the display screen serial interface, so as to realize the display functions of the flexible display screen and the light field screen.
It is understood that the above-described processors may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processingunit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a video codec, a digital signal processor (DIGITAL SIGNAL processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.
The folding device provided by the embodiment of the application comprises the flexible display screen and the light field screen arranged on the back of the flexible display screen, wherein the flexible display screen is used for normally displaying contents, the light field screen is used for receiving the content images transmitted by the folding device and projecting the content images to the outside, and when the content images projected by the light field screen reach the display device, the size of the content images displayed on the display device can be larger than the size of the content images displayed on the light field screen, so that a user can project the contents such as small-size navigation, videos, music and the like displayed on the folding device such as a mobile phone in a larger size, for example, the projection of an oversized picture can be provided, the AR-HUD effect is realized, and better audiovisual experience is brought to the user.
In some embodiments, fig. 2 is a schematic diagram of a second structure of a folding device according to an embodiment of the present application, where only a front schematic diagram of the folding device is shown, and a back surface of the folding device may set a specific size and a specific position of a light field screen according to actual situations for content projection; as shown in fig. 2, the flexible display screen 10 may include a first display area and a second display area, and the folding apparatus may further include:
a folding component 30 for adjusting an angle between the first display area and the second display area, and adjusting a projection angle of the light field screen based on the angle;
and activating the light field screen based on the angle being less than a set threshold.
In fig. 2, the folding device is a folding mobile phone, and the folding method is a left-right folding method, and the folding method of the folding device may be up-down folding, left-right folding, or other possible folding methods, which is not a limitation of the present application.
Specifically, the folding device further includes a folding assembly that divides the flexible display screen into a first display area and a second display area, and a user can adjust an angle between the first display area and the second display area through the folding assembly.
For example, the folding assembly may be a hinge or a swivel.
In some embodiments, the angle between the first display region and the second display region may be set in the range of 0 to 180 °.
The folding component provided by the embodiment of the application can adaptively adjust the projection angle of the light field screen based on the angle between the first display area and the second display area which are adjusted by a user so as to normally project the content image to the outside.
In addition, the folding component can also determine whether to start the light field screen based on the angle between the first display area and the second display area adjusted by the user, for example, the light field screen can be started under the condition that the angle is smaller than a set threshold, that is, the light field screen is started after the first display area and the second display area of the flexible display screen are folded to a certain angle, and the light field screen can be controlled not to be started when the flexible display screen is completely opened.
In some embodiments, whether to start the light field screen to project the content image may also be controlled by a control instruction of the user.
For example, a driving motor may be disposed in the folding assembly, and the driving motor is controlled to drive the stroke of the folding assembly by a control command, so that the folding assembly folds the folding device to a suitable angle.
In some embodiments, the light field screen may include:
A display panel for displaying the content image transmitted based on the folding apparatus;
and the micro lens array is arranged on the display panel and is used for projecting the content image displayed by the display panel to the outside after the propagation direction of the content image is adjusted by the micro lens array.
Specifically, the light field screen may include a display panel and a microlens array, where the display panel is used for displaying a content image transmitted by a processor (for example, a central processor or a graphics processor) of the folding device, and the microlens array is disposed on the display panel, so that the content image displayed on the display panel can be projected to the outside after the propagation direction of the content image is adjusted by the microlens array, and for adjusting the light propagation path on the light field screen, the light propagation path can be specifically adjusted by adjusting the shape and position of the microlens, so as to meet the required projection requirement.
With respect to the microlens array, fig. 3 is a schematic cross-sectional view of a display panel integrated with the microlens array in a folding apparatus according to an embodiment of the present application, and as shown in fig. 3, the display panel 300 includes a lens-free display panel 310 without the microlens array and a microlens array 320; the microlens array 320 may include a plurality of microlenses M, the microlens array 320 being disposed on the lenticular-free display panel 310 to form the display panel 300, the lenticular-free display panel 310 may further include pixel units in which pixel driving circuits are used to drive pixel light sources to generate light for the display panel 300, and a specific light propagation direction may be toward a direction of an observer, that is, the pixel light sources may propagate light toward the observer through the corresponding microlenses M.
The specific working principle of the microlens array is as follows: in fig. 3, microlens array 320 comprises an array of individual microlenses M, each microlens aligned with a corresponding pixel light source. Each microlens M has a positive optical power and is set to reduce the divergence or viewing angle of light emitted from the corresponding pixel light source. The light beam emitted from the pixel light source has a wide original divergence angle, for example, the original angle is greater than 60 °, the light ray is bent by the micro lens M after passing through the micro lens M, and the formed new light beam has a smaller divergence angle, for example, the smaller divergence angle is less than 30 °.
In some embodiments, the microlenses M in the microlens array 320 are generally identical. Examples of the microlenses may include spherical microlenses, aspherical microlenses, fresnel microlenses, cylindrical microlenses, and the like.
Microlens array 320 generally has a planar side and a curved side. In fig. 3, the bottom of the microlens M is a planar side, and the top of the microlens M is a curved side. Typical shapes of the base of each microlens M may include circular, square, rectangular, hexagonal, etc., and the individual microlenses M may be identical or different in shape, curvature, optical power, size, base, spacing, etc. In the example of fig. 3, the circular base of the microlens M has the same width as the pixel cell, but a smaller area because the microlens base is circular and the pixel cell is square, in some embodiments the microlens base area may also be larger than the area of the pixel light source.
In some embodiments, the height of the microlenses M is set to not more than 0.8 micrometers or 1 micrometer, and the specific height may be set according to practical situations. In some embodiments, the width of the microlens M is set to be not more than 3.5 micrometers or 4.5 micrometers, and the specific width may be set according to practical situations. In some embodiments, the aspect ratio of the microlens M is set to be greater than 1 or 2, and may be set according to the actual situation.
It should be noted that a complete display panel 300 will include a number of individual pixel cells and an array of microlenses M. For clarity, fig. 3 shows only 4 individual pixel cells in display panel 300, where each pixel cell includes one pixel light source corresponding to a single microlens M, which is but one embodiment, to which the present application is not limited.
In some embodiments, the brightness enhancement effect is achieved by integrating a microlens array onto the display panel. In some embodiments, the brightness with the microlens array is 4 times greater than the brightness without the microlens array in the direction perpendicular to the display surface due to the condensing effect of the microlenses. In alternative embodiments, the brightness enhancement factor may vary according to different designs of microlens arrays and optical spacers. For example, a factor greater than 8 may be implemented.
Fig. 4 is a top view of an exemplary monochrome display panel with a square array layout of pixels integrated with a spherical microlens array in a folding device according to one embodiment of the present application, as shown in fig. 4, two display panels 400 comprising an array of microlenses 410, a mesa array comprising pixel light sources 420 located below the microlenses 410, and optionally optical spacers formed between the microlens array and the mesa array. Each individual microlens is aligned with a mesa that includes an individual pixel light source. In some embodiments, the display panel 400 having a square matrix layout includes: an array of individual microlenses 410, a corresponding mesa array comprising pixel light sources 420, and optionally an optical spacer (e.g., a square structure in the figure) between the microlens array and the mesa array.
In fig. 4, each microlens 410 of the corresponding display panel 400 may be spherical microlenses arranged in a square, triangle or hexagonal matrix, and in some embodiments, the curvature, refractive index, arrangement, etc. of the microlenses may affect the propagation path of light, and may be set according to practical situations.
In some embodiments, the light on the light field screen may be modified and focused, and as the light emitted from the edge of the display screen passes through the array of microlenses, the microlenses fine-tune and focus the light to ensure that the light reaches the light field screen at the correct angle, which requires highly accurate optical design and engineering.
In some embodiments, the light field screen may further include a substrate on which the display panel and the microlens array are disposed, and a glass cover plate for protecting the internal devices of the light field screen.
In some embodiments, the microlens array may include a multi-layer microlens array, where the microlenses in each microlens array are arranged in a focal plane array.
Specifically, the microlens array in the embodiment of the present application may be implemented by a multi-layer microlens array, and the light field screen technology relies on the microlens array, where each microlens is used to focus and adjust the propagation of light so as to form an image at a specific viewing angle and depth, and the microlenses in the multi-layer microlens array may be disposed at different positions and different angles so as to implement image superposition at different depths and angles, and such multi-layer design helps to provide a more realistic and multi-angle projection effect, and may further enhance the user experience.
Fig. 5 is a schematic view of a focal plane array in a folding apparatus according to an embodiment of the present application, and as shown in fig. 5, the focal plane array mainly includes two lens arrays LA1 and LA2 arranged in a stack, and may be used in combination with a spatial mask (SPATIAL MASK, SM), where SM is located in an optical conjugate plane of an exit pupil with respect to LA 2.
It can be seen that the light beams sequentially pass through the LA1 and the SM, and can be focused on the LA2 plane for display, so that different positions and angles can be realized, and the image superposition display at different depths and angles can be realized.
In addition, can adopt focal plane array to the microlens in the multilayer microlens array for every pixel is all focused by a plurality of microlens and forms, and this kind of design can make the screen can show the image of a plurality of angles simultaneously, helps providing more lifelike and multi-angle projection effect, can further improve user experience.
The following illustrates a folding apparatus provided by an embodiment of the present application.
Fig. 6 is a third schematic structural view of a folding apparatus according to an embodiment of the present application, as shown in fig. 6, the folding apparatus includes: the flexible display screen 10, the light field screen 20 and the folding assembly 30, the folding device performs projection of the content image, for example onto a windshield of a vehicle, by way of example at the angles shown.
The folding device may be a device folded in two from left to right, a device folded in two from top to bottom, or any device capable of realizing a folding manner, which is not a limitation of the present application.
The embodiment of the application also provides a vehicle, which comprises:
a front windshield on which a head-up display area is formed;
The folding apparatus of any one of the above embodiments, wherein the content image projected through the light field screen is displayed in the heads-up display area.
Specifically, the folding apparatus according to any one of the embodiments described above may be provided inside a vehicle for projecting a content image into a head-up display area formed on a front windshield.
In some embodiments, taking a mobile phone as an example, when a user needs to project a content image on the mobile phone to a front windshield of a vehicle, a front LCD (i.e., a flexible display screen) and a rear directional screen (i.e., a light field screen) of the mobile phone can be folded in opposite directions at an angle of 45 degrees, and a projection mode is started. The mobile phone system is driven by an OS, content such as navigation, video, music and the like on the flexible display screen is transmitted to a light field screen on the back surface, the light field screen controls light propagation through the micro lens array, the content is projected onto a front windshield of a vehicle, and an AR-HUD effect is achieved.
In other embodiments, the mobile phone can be placed in an area above the vehicle instrument panel area in a fixed magnetic manner, and the rear cover part of the mobile phone can be provided with a magnetic attachment, so that the mobile phone can be well attached to a fixed magnetic attachment area reserved above the instrument panel, and can not be influenced in the driving process, and can be normally projected.
The embodiment of the application also provides a display method which is applied to folding equipment, the folding equipment comprises a flexible display screen, fig. 7 is a schematic flow chart of the display method provided by the embodiment of the application, and as shown in fig. 7, the display method comprises the following steps: step 710. The method flow steps are only one possible implementation of the application.
Step 710, transmitting the content image to a light field screen arranged at the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
Specifically, on one hand, the content image can be normally displayed on the flexible display screen of the folding device, and on the other hand, the folding device can transmit the content image to the light field screen arranged on the back of the flexible display screen, so that the light field screen can project the content image to the outside, and when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen, and the content projection with larger size is realized.
It will be appreciated that the light field screen may be a separate screen from the flexible display screen, and the content displayed on the light field screen may be the same as or different from the flexible display screen, which is not a limitation of the present application.
It will be appreciated that the display device described above may refer to a device within an enclosed or open space that can receive and carry an image of content, such as a projected curtain, a front windshield of a vehicle window, or other transparent glass, and is not limiting of the application.
In the embodiment of the application, the folding equipment comprises the flexible display screen and the light field screen arranged on the back of the flexible display screen, the flexible display screen is used for normally displaying the content, the folding equipment can transmit the content image to the light field screen, so that the light field screen can project the content image to the outside, when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than that of the content image displayed on the light field screen, so that a user can project the content such as small-size navigation, video, music and the like displayed on the flexible display screen of the folding equipment such as a folding mobile phone in a larger size, for example, the projection of an oversized picture on the front windshield of a vehicle can be performed, the limitation of a smaller physical space such as the inside of the vehicle is broken through, the AR-HUD effect is realized, and better audio-visual experience is brought to the user.
It should be noted that each embodiment of the present application may be freely combined, exchanged in order, or separately executed, and does not need to rely on or rely on a fixed execution sequence.
In some embodiments, the projection angle of the light field screen may be adjusted based on a folding component of the folding device, wherein the folding component is to adjust an angle between a first display area and a second display area of the flexible display screen;
And activating the light field screen based on the angle being less than a set threshold.
Specifically, the folding device further comprises a folding component, the folding component can be used for adjusting the angle between the first display area and the second display area of the flexible display screen, then the projection angle of the light field screen is adjusted based on the folding component, and the light field screen is started based on the fact that the angle is smaller than a set threshold, namely the light field screen is started after the first display area and the second display area of the flexible display screen are folded to a certain angle, and the light field screen can be controlled not to be started when the flexible display screen is completely opened; the setting threshold may be set according to actual situations.
In some embodiments, the angle between the first display region and the second display region may be set in the range of 0 to 180 °.
In some embodiments, whether to start the light field screen to project the content image may also be controlled by a control instruction of the user.
In some embodiments, the display panel of the light field screen displays based on the content image transmitted by the folding device;
And adjusting the propagation direction of the content image displayed by the display panel through the micro lens array of the light field screen, and then projecting the content image to the outside.
Specifically, the light field screen comprises a display panel and a micro-lens array, wherein the display panel can display the content image transmitted by the folding equipment, and then the content image displayed by the display panel is projected to the outside after the propagation direction of the content image is adjusted by the micro-lens array of the light field screen.
For adjusting the light propagation path on the light field screen, the shape and the position of the micro lens can be specifically adjusted to adjust the light propagation path so as to meet the required projection requirement.
In some embodiments, the curvature, refractive index, arrangement, etc. of the microlenses may affect the propagation path of the light, and may be set according to practical situations.
In some embodiments, the light on the light field screen may be modified and focused, and as the light emitted from the edge of the display screen passes through the array of microlenses, the microlenses fine-tune and focus the light to ensure that the light reaches the light field screen at the correct angle, which requires highly accurate optical design and engineering.
In some embodiments, the light field screen may further include a substrate on which the display panel and the microlens array are disposed, and a glass cover plate for protecting the internal devices of the light field screen.
In some embodiments, the microlens array comprises a multi-layer microlens array, and the microlenses in each microlens array are arranged in a focal plane array.
Specifically, the microlens array in the embodiment of the present application may be implemented by a multi-layer microlens array, and the light field screen technology relies on the microlens array, where each microlens is used to focus and adjust the propagation of light so as to form an image at a specific viewing angle and depth, and the microlenses in the multi-layer microlens array may be disposed at different positions and different angles so as to implement image superposition at different depths and angles, and such multi-layer design helps to provide a more realistic and multi-angle projection effect, and may further enhance the user experience.
In addition, can adopt focal plane array to the microlens in the multilayer microlens array for every pixel is all focused by a plurality of microlens and forms, and this kind of design can make the screen can show the image of a plurality of angles simultaneously, helps providing more lifelike and multi-angle projection effect, can further improve user experience.
The folding device, the vehicle, the display method and the storage medium provided by the embodiment of the application are described below by taking the folding device as an example of a folding mobile phone.
The implementation of the folding mobile phone specifically comprises the following components or related contents:
1) Front main screen (i.e. flexible display screen): conventional screen technology (such as AMOLED or LCD) is used as the front main screen of the mobile phone for normally displaying information on the mobile phone.
2) Back projection screen (i.e. light field screen): the light field screen technology is adopted as a reverse screen of the mobile phone, so that projection of content is realized. The screen is provided with a micro lens array, and the projection effect is realized by controlling the propagation and refraction of light rays.
3) OS driver of mobile phone system: and through the system level opening, information transmission and interaction between the front main screen and the back projection screen are realized.
4) Front windshield projection of vehicle: when a user needs to project information on the mobile phone to the front windshield of the vehicle, the front LCD and the rear directional screen of the mobile phone can be folded reversely at an angle of 45 degrees, and a screen projection mode is started. And transmitting the navigation/video/music and other contents on the front main screen to the back projection screen through the OS drive of the mobile phone system. The back projection screen controls light transmission through the micro lens array, and projects the content onto the front windshield of the vehicle, so that an AR-HUD effect is realized.
5) Regarding the position of the mobile phone, the mobile phone fixing magnetic attraction mode can be placed in the upper area of the instrument panel area of the vehicle, and the mobile phone rear cover part can be attached with the magnetic attraction mode, so that the mobile phone rear cover part can be attached to the fixed magnetic attraction area reserved above the instrument panel well, and the mobile phone rear cover part cannot be affected in the running process.
Among them, the reflective films used in the light field screen technology of folded cell phones are typically very thin, typically on the order of a few micrometers (μm). The thickness of the reflective film is determined by the thickness of the reflective film to ensure light transmission and to provide the desired light field effect thereon.
The reflective film is typically mounted on the light field screen of the folded cell phone, and the light field screen is typically moved to control the angle at which the content image is projected, typically the reflective film is positioned in front of the microlens array to reflect the light rays emitted from the edges of the display screen to focus them and control the propagation of the light rays to ensure that the light rays reach the microlens array at the correct angle.
Regarding the setting angle of the reflective film, the light field screen technology can adopt a multi-microlens array to control the propagation and refraction of light rays so as to form image superposition on multiple angles and depths, thereby realizing image display of multiple angles. Each microlens can disperse light to form tiny pixel points. Meanwhile, a focal plane array is adopted, and a plurality of microlenses are specifically arranged to form the focal plane array, and each pixel point is formed by focusing a plurality of microlenses. This design enables the screen to display images at multiple angles simultaneously.
Wherein a multiple microlens array is disposed behind the reflective film, comprising a plurality of microlenses, each microlens for controlling the propagation of light rays, the multiple microlens array functioning to further fine tune and focus the light rays to ensure that the image propagates and projects at the correct angle. These microlenses can control the angle and position of the light to achieve a projection effect over multiple angles and depths.
It should be noted that the reflective film and the multiple microlens array need to cooperate, the reflective film reflects light to guide the light to the microlens array, and then the multiple microlens array further adjusts the light to meet specific projection requirements, and the two parts jointly realize the projection principle of the light field screen technology. Light field screens are typically movable to control the projection angle and position, but reflective films are static to help adjust light propagation.
In addition, the folding mobile phone can dynamically adjust the parameters of the micro lens by adopting an intelligent algorithm, and can adjust the focusing effect of the micro lens according to the change of the viewing angle, thereby ensuring the definition of the picture and the color restoration degree so as to adapt to the position and the viewing angle change of an observer. This helps to maintain the sharpness and stability of the projected image.
It should be noted that, selecting an appropriate optical material is critical to ensure light propagation and correction, and high quality materials can reduce light scattering and distortion.
In summary, the implementation of light field screen technology involves complex optical designs and engineering, requiring highly accurate microlens arrays to adjust and correct the propagation of light to meet specific projection requirements. This technique has wide application in AR-HUD systems because it can provide more realistic and multi-angle image projection.
The embodiment of the application has at least the following beneficial effects:
1) Folding design: through the folding design of the mobile phone, the function switching of the front main screen and the back projection screen is realized, and the dual functions of normal display and content projection are provided.
2) The double-screen system level is communicated: through the OS drive of the mobile phone system, information transmission and interaction between the front main screen and the back projection screen are realized, so that a user can conveniently switch and control the projection content.
3) Ultra-large size picture projection: the projection of the oversized picture is realized by utilizing the light field screen technology of the back projection screen, and a better audiovisual experience is provided for passengers in the vehicle.
4) Break through the space limitation: the mobile phone can be changed into an AR-HUD by projecting the contents such as navigation, video, music and the like on the mobile phone onto the front windshield of the vehicle, so that the limitation of the physical space in the vehicle is broken through, and more convenient and safer navigation and driving auxiliary functions are provided.
Through the folding equipment, the vehicle, the display method and the storage medium, a user can enjoy normal information display on the mobile phone, and meanwhile, the content can be projected onto the front windshield of the vehicle, so that the AR-HUD effect is realized, and better audio-visual experience is provided for passengers in the vehicle.
Fig. 8 is a schematic physical structure of a folding apparatus according to an embodiment of the present application, and as shown in fig. 8, the folding apparatus may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform a display method that is applied to a folding device that includes a flexible display screen, the method comprising:
Transmitting the content image to a light field screen arranged on the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches a display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present application also provides a computer program product, the computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method provided by the above method embodiments, the method being applied to a folding device, the folding device comprising a flexible display screen, the method comprising:
Transmitting the content image to a light field screen arranged on the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches a display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
In yet another aspect, the present application further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the display method provided by the above-described method embodiments, the method being applied to a folding device, the folding device including a flexible display screen, the method including:
Transmitting the content image to a light field screen arranged on the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches a display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A folding apparatus comprising:
A flexible display screen;
The light field screen is arranged on the back of the flexible display screen and is used for receiving the content image transmitted by the folding equipment and projecting the content image to the outside, wherein when the content image projected by the light field screen reaches the display device, the size of the content image displayed on the display device is larger than that of the content image displayed on the light field screen.
2. The folding device of claim 1, wherein the flexible display screen includes a first display area and a second display area, the folding device further comprising:
The folding component is used for adjusting the angle between the first display area and the second display area and adjusting the projection angle of the light field screen based on the angle;
and activating the light field screen based on the angle being less than a set threshold.
3. The folding device of claim 1, wherein the light field screen comprises:
A display panel for displaying the content image transmitted based on the folding apparatus;
and the micro lens array is arranged on the display panel and is used for projecting the content image displayed by the display panel to the outside after the propagation direction of the content image is adjusted by the micro lens array.
4. A folding apparatus according to claim 3, wherein the microlens array comprises a multi-layer microlens array, the microlenses in each microlens array being arranged in a focal plane array.
5. A vehicle, comprising:
a front windshield on which a head-up display area is formed;
The folding device of any of claims 1-4, wherein content images projected through the light field screen are displayed in the heads-up display area.
6. A display method applied to a folding device, the folding device comprising a flexible display screen, the method comprising:
Transmitting the content image to a light field screen arranged on the back of the flexible display screen, so that the light field screen projects the content image to the outside, wherein when the content image projected by the light field screen reaches a display device, the size of the content image displayed on the display device is larger than the size of the content image displayed on the light field screen.
7. The display method of claim 6, further comprising:
Adjusting a projection angle of the light field screen based on a folding component of the folding device, wherein the folding component is used for adjusting an angle between a first display area and a second display area of the flexible display screen;
And activating the light field screen based on the angle being less than a set threshold.
8. The display method of claim 6, further comprising:
the display panel of the light field screen displays the content image transmitted by the folding equipment;
And adjusting the propagation direction of the content image displayed by the display panel through the micro lens array of the light field screen, and then projecting the content image to the outside.
9. The display method of claim 8, wherein the microlens array comprises a multi-layer microlens array, and the microlenses in each microlens array are arranged in a focal plane array.
10. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the display method of claims 6-9.
CN202410015240.2A 2024-01-04 2024-01-04 Folding apparatus, vehicle, display method, and storage medium Pending CN117975819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410015240.2A CN117975819A (en) 2024-01-04 2024-01-04 Folding apparatus, vehicle, display method, and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410015240.2A CN117975819A (en) 2024-01-04 2024-01-04 Folding apparatus, vehicle, display method, and storage medium

Publications (1)

Publication Number Publication Date
CN117975819A true CN117975819A (en) 2024-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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