Display device and head-mounted equipment
By combining display components and light source components in VR devices, and using light diffusers and light guide structures to evenly scatter light, the display area is increased, solving the problem of the VR device's small field of view and improving the user's immersion and virtual reality experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO GOERTEK VISION TECH CO LTD
- Filing Date
- 2024-10-08
- Publication Date
- 2026-04-10
AI Technical Summary
The current VR products on the market have too small a field of view, resulting in poor user immersion and failing to provide users with a good virtual reality experience.
It combines display components and light source components. The display components include a display screen and a light dome, while the light source components include a light guide structure and multiple light sources. Light is transmitted to the light dome through the light guide structure and is evenly scattered, increasing the display area and enhancing the immersive experience.
By increasing the display area, the immersion and viewing experience of users using VR devices are improved, solving the problem of poor immersion caused by an excessively small display field of view.
Smart Images
Figure CN121832085A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of head-mounted device technology, and more specifically, to a display device and a head-mounted device. Background Technology
[0002] In recent years, major virtual reality (VR) manufacturers have been pursuing ways to improve the immersive experience of VR headsets. However, the current VR products on the market have too small a field of view, resulting in poor immersion for users and failing to provide them with a better virtual reality experience. Summary of the Invention
[0003] The purpose of this application is to provide a new technical solution for a display device.
[0004] In a first aspect, this application provides a display device, the display device comprising:
[0005] The display component includes a display screen and a light-diffusing plate, wherein the periphery of the display screen is surrounded by the light-diffusing plate;
[0006] A light source assembly is disposed on the backlight side of the display assembly, and the light source assembly includes a light guide structure and multiple light sources;
[0007] When the display screen shows the current frame image, the light emitted by the multiple light sources is guided to the light-diffusing plate through the light guide structure, and the light is uniformly scattered by the light-diffusing plate; wherein the light emitted by the multiple light sources is related to the current frame image.
[0008] Optionally, the light guide structure is a directional light guide plate.
[0009] Optionally, the plurality of light sources are disposed within the light guide structure and arranged around the periphery of the light guide structure.
[0010] Optionally, the number P of the light sources set at any single position in the peripheral position and the number N of the pixels on a single side of the display screen satisfy the following relationship: N / 100 < P ≤ N / 10, where both P and N are greater than 0.
[0011] Optionally, the display area of the screen formed by the display screen in the imaging area of the lens has a larger display ratio than the ambient light display area formed by the light-diffusing plate in the imaging area.
[0012] Optionally, the screen display area accounts for 80% to 90% of the display area of the imaging area, and correspondingly, the ambient light display area accounts for 10% to 20% of the display area of the imaging area.
[0013] Optionally, the combination method of the display screen and the light-diffusing plate includes one of the following: embedded, bonded, or adhesive.
[0014] Optionally, the color of the light emitted by the plurality of light sources is related to the color of the edge pixels of the current frame image.
[0015] Optionally, the light source is an LED lamp bead.
[0016] In a second aspect, this application provides a head-mounted device that includes a display device as described in the first aspect.
[0017] The display device provided according to the embodiments of this application includes a display component and a light source component. The display component includes a light doubling plate and a display screen. The periphery of the display screen is surrounded by the light doubling plate. The light source component is disposed on the backlight side of the display component. Thus, when the display screen displays the current frame image, the light emitted by the light source in the light source component, which is related to the current frame image, is conducted to the light doubling plate through the light guide structure in the light source component, and the light doubling plate evenly scatters the light. In other words, by combining the light doubling plate, the display screen, and the light source component, the display screen displays the frame image, and the light doubling plate outputs light related to the current frame image for atmosphere rendering, which improves the viewing immersion of users when using head-mounted devices and solves the problem of poor immersion caused by the small display field of view when users wear head-mounted devices, thus providing users with a better viewing experience.
[0018] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.
[0020] Figure 1 This is one of the structural schematic diagrams of the display device provided in the embodiments of this application;
[0021] Figure 2 This is a second schematic diagram of the structure of the display device provided in the embodiments of this application.
[0022] Explanation of reference numerals in the attached figures:
[0023] 11. Display screen; 12. Light dome; 21. Light guide structure; 22. Light source; 3. Imaging area. Detailed Implementation
[0024] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present application.
[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.
[0026] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.
[0027] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.
[0029] The display device and head-mounted device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings. Generally, the head-mounted device can be a VR device. Through the display device provided in the embodiments of this application, the display screen displays the current frame image, and the light-diffusing plate uniformly scatters the light emitted by multiple light sources that matches the current frame image. Compared with existing display devices, the display area of the screen is increased, which improves the viewing immersion of users when using VR devices and solves the problem of poor immersion caused by the small display field of view when users wear VR devices, giving users a better virtual reality experience.
[0030] See Figure 1 and Figure 2 This application exemplarily illustrates a display device.
[0031] The optical architecture of the display device provided in this application embodiment can be found in [reference needed]. Figure 1 As shown, the display device includes a display component and a light source component. The display component includes a display screen 11 and a light-diffusing plate 12, with the periphery of the display screen 11 surrounded by the light-diffusing plate 12. The light source component is disposed on the backlight side of the display component, and includes a light guide structure 21 and a plurality of light sources 22.
[0032] When the display screen 11 displays the current frame image, the light emitted by the plurality of light sources 22 is conducted to the light-diffusing plate 12 through the light guide structure 21, and the light is uniformly scattered by the light-diffusing plate 12; wherein the light emitted by the plurality of light sources is related to the current frame image.
[0033] The aforementioned display screen 11 is used to display each frame of the image from the head-mounted device. The display screen 11 may be, for example, but not limited to, an organic light-emitting diode (OLED) or a liquid crystal display (LCD), but this embodiment does not limit it to this.
[0034] The aforementioned light guide structure 21 is typically made of polycarbonate (PC) sheet. Specific light guide points are set on the PC sheet, allowing light to undergo multiple reflections and scatterings after entering the light guide structure 21, thus achieving uniform light distribution. That is, the light guide structure 21 can uniformly emit light emitted from the light source 22, avoiding dark areas or bright spots caused by uneven light distribution. Specifically, when light emitted from the light source 22 enters the light guide structure 21, the light is reflected and scattered inside the light guide structure 21. Some light propagates along the direction of the light guide structure 21 and undergoes further reflection and scattering upon encountering the light guide points, ultimately exiting uniformly from the surface of the light guide structure 21.
[0035] The light-diffusing plate 12 can uniformly scatter the light source emitted from the light guide structure 21, that is, it can transform the line light source emitted from the light guide structure 21 into a surface light source, making the light emitted by the light source 22 softer and more evenly distributed.
[0036] See Figure 1 The light-diffusing plate 12 is located on the backlight side of the display screen 11, and the display screen 11 is surrounded by the light-diffusing plate 12. When the display device is working, the display screen 11 displays the current frame image. Multiple light sources 22 emit light related to the current frame image. After the light is guided by the light guide structure 21, it is usually received and homogenized by the light-diffusing plate 12. The point light source emitted by the light source 22 becomes a line light source after passing through the light guide structure 21. After being homogenized by the light-diffusing plate 12, the line light source becomes a soft area light source. Generally, the light uniformly scattered by the light-diffusing plate 12 can be understood as the ambient light matching the current frame image.
[0037] The display device provided according to the above embodiments of this application includes a display component and a light source component. The display component includes a light doubling plate and a display screen. The periphery of the display screen is surrounded by the light doubling plate. The light source component is disposed on the backlight side of the display component. Thus, when the display screen displays the current frame image, the light emitted by the light source in the light source component that matches the current frame image is conducted to the light doubling plate through the light guide structure in the light source component, and the light doubling plate evenly scatters the light. In other words, by combining the light doubling plate, the display screen, and the light source component, the display screen displays the frame image, and the light doubling plate outputs light related to the current frame image for atmosphere rendering, which improves the viewing immersion of users when using head-mounted devices, solves the problem of poor immersion caused by the small display field of view when users wear head-mounted devices, and brings users a better viewing experience.
[0038] In other words, if the display device of this application embodiment is applied to a VR device, since the VR device involves a screen display area composed of a display screen and an ambient light display area composed of a light dome, the VR device has the characteristic of a large display area. The screen display area displays frame images, while the ambient light display area does not display imaging images but displays ambient light that matches the frame images for atmosphere rendering purposes. Since the larger the display area, the larger the designable display field of view, this ensures an increase in the upper limit of the VR device's immersion. Without changing the VR device's optical design itself, the display image experience of the VR device can be further improved, thus further enhancing the immersion of the VR device.
[0039] According to some examples of this application, the combination of the display screen 11 and the light-diffusing plate 12 includes one of the following: embedded, bonded, or adhesive.
[0040] According to some examples of this application, the color of the light emitted by the plurality of light sources 22 is related to the color of the edge pixels of the current frame image.
[0041] Specifically, when the display device is working, the display screen 11 displays the current frame image, and multiple light sources 22 emit light that matches the color of the edge pixels of the current frame image. The light is transmitted to the light-diffusing plate 12 through the light guide structure 21, and the light-diffusing plate 12 scatters the light evenly.
[0042] Through the embodiments of this application, when the display screen 11 displays different frame images, the color and brightness of the light emitted by the multiple light sources 22 will also be adjusted accordingly, so that the light output by the light-diffusing plate 12 is more in line with the overall image appearance, enhancing the atmosphere and immersion of the user experience.
[0043] It should be noted that the colors of the light emitted by the multiple light sources 22 are processed by the algorithm system of the head-mounted device and displayed on the display device in real time.
[0044] Based on some examples in this application, see Figure 1 The light guide structure 21 is a directional light guide plate, and the light source 22 is an LED lamp bead, which can be called a backlight LED lamp bead.
[0045] It should be noted that, since head-mounted devices require large-area uniform illumination, the light guide structure 21 is set as a directional light guide plate. The light emitted by the light source 22 is evenly distributed across the entire plate surface through the internal light guide points, thereby providing a uniform illumination effect.
[0046] Reference Figure 1 When the display device is working, the display screen 11 displays the current frame image. The light emitted by multiple LED beads is guided by the light guide plate and is usually received and homogenized by the light homogenizing plate 12. Specifically, the point light source emitted by the LED beads becomes a line light source after passing through the light guide plate, and the line light source becomes a soft area light source after being homogenized by the light homogenizing plate 12.
[0047] Based on some examples in this application, see Figure 1 and Figure 2 The plurality of light sources 22 are disposed within the light guide structure 21 and are arranged around the periphery of the light guide structure 21.
[0048] It should be noted that LED beads can be placed inside or outside the directional light guide plate. However, placing the LED beads outside the directional light guide plate is equivalent to adding an air layer between the LED beads and the directional light guide plate, which reduces the light guiding efficiency of the directional light guide plate. Conversely, placing the LED beads inside the directional light guide plate can improve its light guiding efficiency.
[0049] Reference Figure 1 and Figure 2 Multiple LED beads are arranged inside the directional light guide plate, and multiple LED beads are arranged around the periphery of the directional light guide plate.
[0050] According to some examples of this application, the number P of the light sources set at any single-sided position in the peripheral position and the number N of the pixels on a single side of the display screen satisfy the following relationship: N / 100 < P ≤ N / 10, where both P and N are greater than 0.
[0051] Reference Figure 2The directional light guide plate includes a left side, a right side, a top side, and a bottom side. The number of LEDs (P) on the left side of the directional light guide plate and the number of pixels (N) on the left side of the display screen satisfy the following relationship: N / 100 < P ≤ N / 10. The number of LEDs (P) on the right side of the directional light guide plate and the number of pixels (N) on the right side of the display screen satisfy the same relationship: N / 100 < P ≤ N / 10. The number of LEDs (P) on the top side of the directional light guide plate and the number of pixels (N) on the top side of the display screen satisfy the same relationship: N / 100 < P ≤ N / 10. Finally, the number of LEDs (P) on the bottom side of the directional light guide plate and the number of pixels (N) on the bottom side of the display screen satisfy the same relationship: N / 100 < P ≤ N / 10.
[0052] Generally, the more light sources are placed on one side, the finer the light output by the light-diffusing plate 12 will be.
[0053] Based on some examples in this application, refer to Figure 2 The display area of the display screen 11 in the imaging area 3 of the lens has a larger display ratio than the ambient light display area of the light dome 12 in the imaging area 3.
[0054] The aforementioned imaging area is the imaging area of the head-mounted device's lenses; a portion of this area is visible to the human eye. (See reference...) Figure 2 The imaging area is circular, with the screen display area formed by the display screen 11 located in the center of the imaging area 3, and the ambient light display area formed by the light dome 12 located around the periphery of the imaging area 3. Furthermore, the display area of the screen display area formed by the display screen 11 in the imaging area 3 typically occupies a larger proportion than the ambient light display area formed by the light dome 12 in the imaging area 3, to ensure normal display of the frame image. The specific design can be adjusted according to actual needs.
[0055] According to some examples of this application, the screen display area accounts for 80% to 90% of the display area in the imaging area 3, and the ambient light display area accounts for 10% to 20% of the display area in the imaging area 4.
[0056] Reference Figure 2 The screen display area occupies 80% to 90% of the imaging area 3, with the range depending on the actual size of the ambient light display area required. From a human-machine optics perspective, it is best to allocate 10% to 20% of the entire field of view of imaging area 3 as the ambient light display area in order to balance the display ratio of the screen display area and the ambient light display area.
[0057] According to another embodiment of this application, a head-mounted device is provided, which includes any of the display devices provided in the Display Device Embodiments section. In this embodiment, the head-mounted device may be a VR device. In this embodiment, since the head-mounted device provided in this application includes any of the display devices provided in the Display Device Embodiments section above, the head-mounted device provided in this application can achieve the same function as any of the display devices provided in the Display Device Embodiments section above. That is, by combining a light-diffusing plate, a display screen, and a light source assembly, the display screen displays frame images, and the light-diffusing plate outputs light related to the current frame image for atmosphere rendering, thereby improving the user's viewing immersion when using the head-mounted device, solving the problem of poor immersion caused by the small display field of view when the user wears the head-mounted device, and bringing a better viewing experience to the user.
[0058] According to some examples of this application, the head-mounted device also includes lenses for projecting the display screen of the display device into the user's field of vision.
[0059] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.
[0060] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.
Claims
1. A display device, characterized in that, include: The display component includes a display screen and a light-diffusing plate, wherein the periphery of the display screen is surrounded by the light-diffusing plate; A light source assembly is disposed on the backlight side of the display assembly, and the light source assembly includes a light guide structure and multiple light sources; When the display screen shows the current frame image, the light emitted by the multiple light sources is guided to the light-diffusing plate through the light guide structure, and the light is uniformly scattered by the light-diffusing plate; wherein the light emitted by the multiple light sources is related to the current frame image.
2. The display device according to claim 1, characterized in that, The light guide structure is a directional light guide plate.
3. The display device according to claim 1, characterized in that, The plurality of light sources are disposed within the light guide structure and are arranged around the periphery of the light guide structure.
4. The display device according to claim 3, characterized in that, The number P of light sources set at any single position in the peripheral position and the number N of pixels on a single side of the display screen satisfy the following condition: N / 100 < P ≤ N / 10, where both P and N are greater than 0.
5. The display device according to claim 1, characterized in that, The display area formed by the display screen has a larger display ratio in the imaging area of the lens than the ambient light display area formed by the light-diffusing plate has a larger display ratio in the imaging area.
6. The display device according to claim 5, characterized in that, The screen display area occupies 80% to 90% of the total display area of the imaging area, and the ambient light display area occupies 10% to 20% of the total display area of the imaging area.
7. The display device according to claim 1, characterized in that, The combination of the display screen and the light-diffusing plate includes one of the following: Embedded, bonded, adhesive.
8. The display device according to claim 1, characterized in that, The colors of the light emitted by the multiple light sources are related to the colors of the edge pixels of the current frame image.
9. The display device according to claim 1, characterized in that, The light source is an LED lamp bead.
10. A head-mounted device, characterized in that, Includes the display device as described in any one of claims 1-9.