WO2023134506A1 - Vr光学系统 - Google Patents

Vr光学系统 Download PDF

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Publication number
WO2023134506A1
WO2023134506A1 PCT/CN2023/070255 CN2023070255W WO2023134506A1 WO 2023134506 A1 WO2023134506 A1 WO 2023134506A1 CN 2023070255 W CN2023070255 W CN 2023070255W WO 2023134506 A1 WO2023134506 A1 WO 2023134506A1
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Prior art keywords
optical
light
module
optical path
optical image
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PCT/CN2023/070255
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English (en)
French (fr)
Inventor
王利亮
于洋
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惠州Tcl移动通信有限公司
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Publication of WO2023134506A1 publication Critical patent/WO2023134506A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features

Definitions

  • the invention relates to the technical field of virtual reality display devices, in particular to a VR optical system.
  • Virtual reality technology (English name: Virtual Reality, abbreviated as VR) is a new practical technology developed in the 20th century.
  • Virtual reality technology includes computer, electronic information, and simulation technology. Its basic implementation method is to simulate a virtual environment by computer to give people a sense of environmental immersion.
  • the Fresnel single lens solution which is low in cost, but the imaging resolution is low and the total optical length is longer; the other is the folded ultra-short focus optical path,
  • the total optical length is about double that of the Fresnel single lens solution, but due to the optical system, the light utilization rate is less than 20%, so the projection brightness is lower, which is about 25% of the Fresnel lens solution.
  • the field of view of the above two solutions is 90-100 degrees, and the PPD (number of pixels per degree) is within 20, which is still far from the limit of 60 of the human eye, so the human eye has serious graininess.
  • the PPD number of pixels per degree
  • the BM black barrier inside the liquid crystal
  • the embodiment of the present application provides a VR optical system, including:
  • optical path folding module and the first light-emitting component and the second light-emitting component arranged on the peripheral side of the optical path folding module;
  • the first light emitting component emits a first optical image toward the optical path folding module along a first direction
  • the second light emitting component emits a second optical image toward the optical path folding module along a second direction
  • the first The optical image is emitted from the optical path folding module to the display area along the third direction
  • the second optical image is emitted from the optical path folding module to the display area along the fourth direction and is aligned with the first optical image. Images are overlapped in the imaging area;
  • the first direction has a first angle with the second direction, and the third direction has a second angle with the fourth direction;
  • the optical path folding module is configured to change the angle of the second included angle by adjusting the angle of the first included angle, thereby adjusting the overlapping area of the first optical image and the second optical image.
  • the first light-emitting component emits the first optical image toward the optical path folding module along the first direction, and the first optical image is emitted from the optical path folding module to the display area along the third direction, and the first optical image is emitted from the optical path folding module to the display area along the third direction.
  • the second light-emitting component emits the second optical image toward the optical path folding module along the second direction, and the second optical image is emitted from the optical path folding module to the display area along the fourth direction and overlaps with the first optical image in the display area;
  • the optical path The folding module is configured to control the first angle between the third direction and the fourth direction by changing the first angle between the first direction (that is, the position of the first light-emitting component) and the second direction (that is, the position of the second light-emitting component).
  • the angle size of the two included angles is to change the overlapping area of the first optical image and the second optical image; that is, the BM area of the first optical image and the pixel array of the second optical image are overlapped in the display area, by placing the first optical image
  • the pixel points of the pixel array of the second optical image are superimposed on the BM area of the first optical image, blocking the continuity of the BM area of the first optical image, reducing the area of the overall visible BM area of the display image, thereby making the screen door effect obvious Improvement, and when the pixel array of the second optical image overlaps with the BM area of the first optical image, in the same display area, the area occupied by the pixels is increased, thereby improving the resolution and brightness of the displayed image. Therefore, compared with the prior art, the VR optical system provided by the present invention can reduce the screen door effect and improve the display effect of the display screen.
  • FIG. 1 is a schematic structural diagram of the VR optical system (folding module) of the embodiment of the present invention.
  • Fig. 2 is a schematic structural diagram of the VR optical system (optical path beam combining module and phase delay reflection module) of the embodiment of the present invention
  • phase delay reflection module according to an embodiment of the present invention
  • Fig. 4 is a schematic structural diagram of an optical path beam combining module according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a first optical image magnification structure according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a second optical image magnification structure according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the overlapping structure of the first BM region and the second pixel array according to the embodiment of the present invention.
  • Fig. 8 is a schematic diagram of the structure of the folding module (polarized light splitting film) according to the embodiment of the present invention.
  • connection and “fixation” should be understood in a broad sense, for example, “fixation” can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined.
  • a VR optical system provided by the present invention includes an optical path folding module 300, a first light-emitting assembly 100 and a second light-emitting assembly 200, and the first light-emitting assembly 100 and the second light-emitting assembly 200 are set On the peripheral side of the optical path folding module 300; the first light-emitting component 100 emits the first optical image toward the optical path folding module 300 along the first direction, and the first optical image is emitted from the optical path folding module 300 to the display area along the third direction ;
  • the second light-emitting assembly 200 emits the second optical image toward the optical path folding module 300 along the second direction, and the second optical image shoots from the optical path folding module 300 to the display area along the fourth direction, and the first optical image and the second optical image
  • the images are overlapped in the imaging area;
  • first direction and the second direction have a first included angle
  • first included angle is greater than and less than 180°
  • third direction and the fourth direction have a second included angle
  • second included angle is greater than or equal to 0° and less than 180° °
  • the optical path folding module 300 is configured to adjust the overlapping area of the first optical image and the second optical image by adjusting the angle of the first included angle to change the angle of the second included angle.
  • the BM area of the first optical image is the first BM area
  • the pixel array of the first optical image is the first pixel array
  • the BM area of the second optical image is the second BM area
  • the pixels of the second optical image The array is a second pixel array.
  • the first light-emitting component 100 emits the first optical image toward the optical path folding module 300 along the first direction, so that the first optical image is emitted from the optical path folding module 300 to the display area along the third direction, and the first optical image is emitted from the optical path folding module 300 to the display area.
  • the second light-emitting assembly 200 emits the second optical image toward the optical path folding module 300 along the second direction, so that the second optical image is also emitted from the optical path folding module 300 to the display area along the fourth direction, by changing the first direction and the second
  • the angle between the third direction and the fourth direction is controlled by the first included angle of the direction (that is, changing the positions of the first light-emitting assembly 100 and the second light-emitting assembly 200) or the state of the optical path folding module 300, so as to
  • the first BM area of the first optical image and the second pixel array of the second optical image are overlapped in the display area, and the pixels of the second pixel array are superimposed on the first BM area to block the Continuity, reducing the area of the overall visible BM of the displayed image, so that the screen door effect is significantly improved, and when the second pixel array overlaps with the first BM area, the number of pixels in the same display area can be increased , so that the resolution and brightness of the displayed image can be improved. Therefore,
  • adjusting the angle of the second angle is essentially changing the orientation of the third direction and the fourth direction, thereby changing the projection positions of the first optical image and the second optical image in the imaging area, and because the third direction and the fourth direction are respectively the emission directions of the first optical image and the second optical image from the optical path folding module 300, that is, the positions including at least the first light-emitting component 100, the second light-emitting
  • the position of the component 200 and the structure of the optical path folding module 300 itself adjusting any of the above components can change the angle of the second included angle.
  • the degree of overlap between the first BM region and the second pixel array needs to be adjusted according to actual needs.
  • the second included angle can also be changed by changing the structure of the optical path folding module 300, so that the first BM area and the second pixel array overlap in the display area.
  • the optical path folding module 300 includes The optical path beam combining module 300-a and the phase delay reflection module 300-b, the second light emitting component 200, the optical path beam combining module 300-a and the phase delay reflection module 300-b are sequentially arranged at intervals along the second direction;
  • the first optical image After the first optical image is sent to the optical path folding module 300, the first optical image first passes through the optical path beam combining module 300-a, and then is directed to the phase delay reflection module 300-b by the optical path beam combining module 300-a, and undergoes phase delay reflection
  • the module 300-b changes its polarization direction and then shoots to the optical path beam combining module 300-a, and finally the optical path beam combining module 300-a shoots to the imaging area along the third direction;
  • the second optical image After the second optical image is sent to the optical path folding module 300, the second optical image first passes through the optical path beam combining module 300-a, and then from the optical path beam combining module 300-a to the phase delay reflection module 300-b, and undergoes phase delay reflection
  • the module 300-b changes its polarization direction and then shoots to the optical beam combining module 300-a, and finally the optical beam combining module 300-a shoots to the imaging area along the fourth direction;
  • the changed polarization direction of the first optical image is perpendicular to its original polarization direction
  • the changed polarization direction of the second optical image is perpendicular to its original polarization direction
  • the light path beam combining module 300-a includes a reflective polarizing film 302 and a semi-transparent and semi-reflecting film 301 that are perpendicular to each other and are arranged crosswise.
  • the semi-transmitting and semi-reflecting film 301 is arranged along the angle bisector of the first included angle.
  • the transmission axis is parallel to the polarization directions of the first optical image and the second optical image.
  • the polarization direction of the light emitted by the first light emitting component 100 is the polarization direction of the first optical image when the first light emitting component emits the first optical image
  • the polarization direction of the light emitted by the second light emitting component 200 is the The polarization direction of the second optical image when the image is illuminated.
  • the semi-transparent and semi-reflective film 301 is arranged along the angle bisector of the first included angle, and the reflective polarizing film 302 and the semi-transparent
  • the semi-reflective film 301 is vertically intersected, and the first optical image sent to the optical path beam combining module 300-a along the first direction is reflected by the semi-transparent and semi-reflective film 301 and directed to the phase delay reflection module 300-b, and passes through the phase delay reflection module 300-a.
  • both the first optical image and the second optical image can be transmitted through the reflection Type polarizing film 302 shoots to the phase retardation reflective module 300-b, and the polarization direction changed by the phase delay reflective module 300-b is perpendicular to the original polarization direction, that is, the first optical image and the second optical image whose polarization direction is changed cannot After being transmitted through the reflective polarizing film 302, reflection can only occur on the reflective polarizing film 302, that is, the first optical image and the second optical image after changing the polarization direction are both reflected on the reflective polarizing film 302 along the third direction respectively. and shoot out in the fourth direction.
  • the light transmittance and light reflectance of the semi-transparent and semi-reflective film 301 are respectively 50%. It can be understood that the VR optical system in the present invention can select other values of light transmittance according to actual usage conditions.
  • the orthographic area of the transflective film 301 in the first direction is equal to the orthographic area of the reflective polarizing film 302 in the first direction;
  • the area of the orthographic projection of the transflective film 301 in the second direction is equal to the area of the orthographic projection of the reflective polarizing film 302 in the second direction.
  • the orthographic projection area of the transflective film 301 in the first direction and the second direction is equal to the orthographic projection area of the reflective polarizing film 302 in the first direction and the second direction, which can ensure the first optical image and
  • the integrity of the second optical image in the process of passing through the optical path beam combining module 300-a is to ensure that the first optical image and the second optical image will not be missing when they are displayed in the display area.
  • the orthographic projection areas of the semi-transparent and semi-reflective film 301 and the reflective polarizing film 302 in the first direction are both equal to the light-emitting area of the first light-emitting component 100; it can be understood that the aforementioned three The areas are equal, which can ensure that the optical path beam combining module 300-a can completely receive the first optical image and ensure the integrity of the first optical image.
  • the orthographic projection areas of the semi-transparent and semi-reflective film 301 and the reflective polarizing film 302 in the second direction are equal to the light-emitting area of the second light-emitting component 200; it can be understood that the aforementioned three The areas are equal, which can ensure that the optical path beam combining module 300-a can completely receive the second optical image and ensure the integrity of the second optical image.
  • the phase delay reflection module 300-b includes a phase retarder 400 and a third lens 500 spaced apart from the phase retarder 400, and the phase retarder 400 is disposed at the combination of the third lens 500 and the optical path. Between the beam modules 300-a; the optical surface of the third lens 500 away from the phase retarder 400 is provided with a reflective film for reflecting the light emitted from the phase retarder 400 to the third lens 500 back to the phase retarder 400 .
  • the third lens 500 has a first optical surface 501 and a second optical surface 502, both of the first optical surface 501 and the second optical surface 502 are parallel to the optical surface of the phase retarder 400, wherein the third lens 500 is close to the phase
  • the optical surface of the retarder 400 is the first optical surface 501
  • the optical surface away from the phase retarder 400 is the second optical surface 502.
  • the second optical surface 502 is provided with a reflective film
  • the second optical surface 502 is provided with a reflective film.
  • the three lenses 500 are used to amplify the optical image passing through the phase retarder 400 and reflect it back to the phase retarder 400 .
  • the phase retarder 400 includes a phase retarder 400 disposed on one side of the optical path beam combining module 300-a and attached to the phase retarder 400 away from the optical path beam combining module 300-a reflective film for the optical plane.
  • the phase retarder 400 has a parallel third optical surface 401 and a fourth optical surface 402, the third optical surface 401 is close to the optical path beam combining module 300-a, and the fourth optical surface 402 is far away from the optical path beam combining module 300-a, A reflective film is disposed on the fourth optical surface 402 for reflecting the optical image changed by the phase retarder 400 back to the optical beam combining module 300 - a.
  • the reflective film disposed on the second optical surface 502 or the reflective film disposed on the fourth optical surface 402 is replaced by a reflective coating.
  • the first included angle is greater than 0° and less than or equal to 90°
  • the optical path folding module 300 is A polarized light splitting film 303 set on the angle bisector of an included angle
  • the transmission axis of the polarizing splitting film 303 is parallel to the polarization direction of the first optical image
  • the transmission axis of the polarizing splitting film 303 is parallel to the polarization direction of the second optical image.
  • the optical image whose polarization direction is parallel to the transmission axis of the polarizing beam splitting film 303 directly passes through the polarizing beam splitting film 303, and the optical image whose polarization direction is perpendicular to the transmission axis of the polarizing beam splitting film 303 is reflected on the polarizing beam splitting film 303.
  • the first optical image directly passes through the polarizing beam splitting film 303 and exits the optical path folding module 300 along the third direction.
  • the three directions are the same.
  • the second optical image directly passes through the polarizing beam splitting film 303 and exits the optical path folding module 300 along the fourth direction.
  • the three directions are the same.
  • the first light-emitting component 100 includes a first light-emitting surface 101 sequentially arranged along a first direction and a first lens 102 parallel to the first light-emitting surface 101;
  • the second light-emitting component 200 includes a second light-emitting surface 201 sequentially arranged along a second direction and a second lens 202 parallel to the second light-emitting surface 201 .
  • the first lens 102 and the second lens 202 are used to magnify the first optical image and the second optical image, and the first light-emitting surface 101 and the second light-emitting surface 201 can be straight or curved. .
  • a fourth lens 600 is further disposed between the optical path folding module 300 and the imaging area, and the first optical image and the second optical image are transmitted through the fourth lens 600 to reach the imaging area.
  • the fourth lens 600 is parallel to the imaging plane formed by the imaging area, and is used to re-magnify the first optical image and the second optical image directed to the imaging area.
  • the VR optical system includes a first light-emitting plane, a first lens 102 parallel to the first light-emitting plane, a second light-emitting plane perpendicular to the first light-emitting plane, and a lens 102 parallel to the second light-emitting plane.
  • the second lens 202, the first light-emitting plane emits the first optical image along the first direction, and the second light-emitting plane emits the second optical image along the second direction, wherein the polarization directions of the first optical image and the second optical image are the same; VR
  • the optical system also includes an optical path beam combining module 300-a, a phase retarder 400, and a third lens 500, wherein the first light emitting plane and the first lens 102 are arranged on one side of the optical path beam combining module 300-a, and the second light emitting plane and
  • the second lens 202 is disposed on the other side of the optical beam combining module 300-a, and the second light-emitting plane, the second lens 202, the optical beam combining module 300-a, the phase retarder 400, and the third lens 500 are sequentially along the second direction Arranged at intervals, the third lens 500 has a first optical surface 501 and a second optical surface 502 parallel to each other, the first optical surface 501 is close to the phase retarder 400
  • the first optical image is sent to the optical path beam combining module 300-a and then sent to the phase retarder 400 by the optical path beam combining module 300-a, and the first optical image is sent to the third lens 500 after the polarization direction of the first optical image is changed by the phase retarder 400, Then it is reflected back to the optical path beam combiner by the reflective film on the second optical surface 502, and finally the first optical image is emitted from the optical path beam combiner module 300-a to the imaging area along the third direction;
  • the second optical image is sent to the optical path beam combining module 300-a and then sent to the phase retarder 400 by the optical path beam combining module 300-a, and the second optical image is sent to the third lens 500 after the polarization direction of the second optical image is changed by the phase retarder 400, Then it is reflected back to the optical path beam combiner by the reflective film on the second optical surface 502 , and finally the second optical image is emitted from the optical path beam combiner module 300 - a to the display area along the fourth direction.
  • the folded optical path is adopted under the condition that the total optical length remains unchanged, the optical path length of the first optical image and the second optical image is increased, and the first optical image and the second optical image are enlarged three times through the lens, which greatly improves the Field angles of the first optical image and the second optical image.
  • the first lens 102 and the second lens 202 use lenses with different refractive powers to form two optical images with different FOVs for transmission, and adjust the size of the second included angle to make the first optical image Overlap with the second optical image in the imaging area, and make the final imaging image present a small FOV and high PPD picture in the central area, and a large FOV and low PPD picture in the outer area, ensuring high clarity in the main visual area of the human eye.
  • the first lens 102, the second lens 202, the third lens 500 and the fourth lens 600 all adopt double-sided convex lenses to magnify the first optical image and the second optical image .
  • the VR optical system provided by the present invention can be applied to a variety of VR display devices, including but not limited to head-mounted VR glasses, VR display screens, etc. Since the VR display device adopts some or all of the technical solutions of the above-mentioned embodiments, therefore It has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described here one by one.

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Abstract

一种VR光学系统，VR光学系统包括光路折叠模组（300）以及设置于周侧的第一发光组件（100）和第二发光组件（200），第一发光组件（100）沿第一方向朝光路折叠模组（300）发射第一光学图像，第一光学图像沿第三方向射向显像区域，第二发光组件（200）沿第二方向朝光路折叠模组（300）发射第二光学图像，第二光学图像沿第四方向射向显像区域并与第一光学图像在显像区域重叠。

Description

VR光学系统
本申请要求于2022年01月17日提交中国专利局、申请号为202210050795.1、发明名称为“一种VR光学系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及虚拟现实显示设备技术领域，特别涉及一种VR光学系统。
 背景技术
虚拟现实技术(英文名称：Virtual Reality，缩写为VR)，是20世纪发展起来的一项全新的实用技术。虚拟现实技术囊括计算机、电子信息、仿真技术，其基本实现方式是计算机模拟虚拟环境从而给人以环境沉浸感。
现有的VR设备中，主要采用的光学方案有两种，一种为费涅尔单透镜方案，成本低廉，但成像清晰度低且光学总长较长；另一种是折叠超短焦光路，光学总长较费涅尔单透镜方案约缩减了一倍，但因光学系统原因，光利用率不到20%，因此投影亮度较低，约为费涅尔透镜方案的25%。
 技术问题
当前以上两种方案的视场角都为90-100度，且PPD（每度像素点个数）都在20以内，与人眼的极限60还存在差距，因此人眼视觉上颗粒感严重。并且当前LCD液晶屏排列方式以及BM（液晶内部阻挡黑色阻）区域的原因，其发出的光被VR光学系统放大后人眼可以明显察觉到BM区域，使人眼感受到纱窗效应。
 技术解决方案
本申请实施例提供了一种VR光学系统，包括：
光路折叠模组以及设置于所述光路折叠模组周侧的第一发光组件和第二发光组件；
所述第一发光组件沿第一方向朝所述光路折叠模组发射第一光学图像，所述第二发光组件沿第二方向朝所述光路折叠模组发射第二光学图像；所述第一光学图像沿第三方向从所述光路折叠模组射向显像区域，所述第二光学图像沿第四方向从所述光路折叠模组射向所述显像区域并与所述第一光学图像在所述显像区域进行重叠；
所述第一方向与所述第二方向具有第一夹角，所述第三方向与所述第四方向具有第二夹角；
所述光路折叠模组被配置为可以通过调整所述第一夹角的角度以改变所述第二夹角的角度，从而调整所述第一光学图像与所述第二光学图像的重叠区域。
 有益效果
本申请实施例提供的VR光学系统由第一发光组件沿第一方向朝光路折叠模组发射第一光学图像，第一光学图像沿第三方向从光路折叠模组射向显像区域，由第二发光组件沿第二方向朝光路折叠模组发射第二光学图像，第二光学图像沿第四方向从光路折叠模组射向显像区域并与第一光学图像在显像区域进行重叠；光路折叠模组被配置为可以通过改变第一方向（即第一发光组件的位置）与第二方向（即第二发光组件的位置）的第一夹角来控制第三方向与第四方向的第二夹角的角度大小，以改变第一光学图像与第二光学图像的重叠区域；即可以使第一光学图像的BM区域与第二光学图像的像素阵列在显像区域进行重叠，通过将第二光学图像的像素阵列的像素点叠加在第一光学图像的BM区域，阻断第一光学图像的BM区域的连续性，减小显示图像整体可视BM区域的面积，从而使纱窗效应得到明显改善，且当第二光学图像的像素阵列与第一光学图像的BM区域重叠时，在相同的显示区域内，像素点所占的面积得以提升，从而使显示图像的分辨率和亮度得以提升。因此，本发明提供的VR光学系统相比现有技术，能够减轻纱窗效应，提高显示画面的显示效果。
 附图说明
图1为本发明实施例VR光学系统结构示意图（折叠模组）；
图2为本发明实施例VR光学系统结构示意图（光路合束模块与相位延迟反射模块）；
图3为本发明实施例相位延迟反射模块结构示意图；
图4为本发明实施例光路合束模块结构示意图；
图5为本发明实施例第一光学图像放大结构示意图；
图6为本发明实施例第二光学图像放大结构示意图；
图7为本发明实施例第一BM区域与第二像素阵列重叠结构示意图；
图8为本发明实施例折叠模组结构示意图（偏光分光膜）。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义，包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
如图1-图8所示，本发明提供的一种VR光学系统，包括光路折叠模组300、第一发光组件100和第二发光组件200，第一发光组件100和第二发光组件200设置于光路折叠模组300的周侧；第一发光组件100沿第一方向朝光路折叠模组300发射第一光学图像，第一光学图像沿第三方向从光路折叠模组300射向显像区域；第二发光组件200沿第二方向朝光路折叠模组300发射第二光学图像，第二光学图像沿第四方向从光路折叠模组300射向显像区域，第一光学图像与第二光学图像在显像区域进行重叠；
其中，第一方向与第二方向具有第一夹角，第一夹角大于且小于180°，第三方向与第四方向具有第二夹角，第二夹角大于或等于0°且小于180°；
光路折叠模组300被配置为可以通过调整第一夹角的角度以改变第二夹角的角度，从而调整所述第一光学图像与所述第二光学图像的重叠区域。
需要说明的是：第一光学图像的BM区域为第一BM区域，第一光学图像的像素阵列为第一像素阵列，第二光学图像的BM区域为第二BM区域，第二光学图像的像素阵列为第二像素阵列。
可以理解的是：由第一发光组件100沿第一方向朝光路折叠模组300发射第一光学图像，使第一光学图像沿第三方向从光路折叠模组300射向显像区域，由第二发光组件200沿第二方向朝光路折叠模组300发射第二光学图像，使第二光学图像沿第四方向从光路折叠模组300也射向显像区域，通过改变第一方向与第二方向的第一夹角（即改变第一发光组件100和第二发光组件200的位置）或光路折叠模组300的状态来控制第三方向与第四方向的第二夹角的角度大小，以使第一光学图像的第一BM区域与第二光学图像的第二像素阵列在显像区域进行重叠，通过将第二像素阵列的像素点叠加在第一BM区域，阻断第一BM区域的连续性，减小显示图像整体可视BM的面积，从而使纱窗效应得到明显改善，且当第二像素阵列处于与第一BM区域重叠时，在相同的显示区域内，像素点的数量得以提升，从而使显示图像的分辨率和亮度得以提升。因此，本发明提供的VR光学系统相比现有技术，能够减轻纱窗效应，提高显示画面的显示效果。
需要说明的是：调整第二夹角的角度大小实质是改变第三方向和第四方向的朝向，从而改变第一光学图像和第二光学图像在显像区域的投射位置，而由于第三方向和第四方向分别是第一光学图像和第二光学图像从光路折叠模组300中的射出方向，即能够影响第二夹角的角度大小的至少包括第一发光组件100的位置、第二发光组件200的位置以及光路折叠模组300本身结构，调整以上任意一个部件都可以改变第二夹角的角度大小。
能够理解的是：第一BM区域与第二像素阵列的重叠度需要根据实际需要进行调整。
在本发明的另一种实施方式中，还可以通过改变光路折叠模组300的结构来改变第二夹角的角度，以使第一BM区域与第二像素阵列在显像区域进行重叠。
在本发明的一种实施方式中，所述第一发光组件100的发光偏振方向与所述第二发光组件200的发光偏振方向相同时，第一夹角为90°，光路折叠模组300包括光路合束模块300-a和相位延迟反射模块300-b，第二发光组件200、光路合束模块300-a以及相位延迟反射模块300-b沿第二方向依次间隔设置；
第一光学图像射向光路折叠模组300后，第一光学图像先经过光路合束模块300-a，再由光路合束模块300-a射向相位延迟反射模块300-b，经相位延迟反射模300-b块改变其偏振方向后再射向光路合束模块300-a，最后由光路合束模块300-a沿第三方向射向显像区域；
第二光学图像射向光路折叠模组300后，第二光学图像先经过光路合束模块300-a，再由光路合束模块300-a射向相位延迟反射模块300-b，经相位延迟反射模300-b改变其偏振方向后再射向光路合束模块300-a，最后由光路合束模块300-a沿第四方向射向显像区域；
其中，第一光学图像改变后的偏振方向与其原偏振方向垂直，第二光学图像改变后的偏振方向与其原偏振方向垂直。
光路合束模块300-a包括彼此垂直且交叉设置的反射型偏振膜302和半透半反射膜301，半透半反射膜301沿第一夹角的角平分线设置，反射型偏振膜302的透射轴与第一光学图像和第二光学图像的偏振方向平行。
需要说明的是：第一发光组件100的发光偏振方向为第一发光组件发出第一光学图像时第一光学图像的偏振方向；第二发光组件200的发光偏振方向为第二发光组件发出第二发光图像时第二光学图像的偏振方向。
可以理解的是：第一夹角为90°时，第一方向与第二方向相互垂直；而半透半反射膜301沿第一夹角的角平分线设置，反射型偏振膜302与半透半反射膜301垂直交叉设置，沿第一方向射向光路合束模块300-a的第一光学图像由半透半反射膜301反射射向相位延迟反射模块300-b，经相位延迟反射模块300-b改变偏振方向后反射回光路合束模块300-a，再由反射型偏振膜302反射沿第三方向射出光路合束模块300-a；沿第二方向射向光路合束模块300-a的第二光学图像透射过反射型偏振膜302射向相位延迟反射模块300-b，经相位延迟反射模块300-b改变偏振方向后反射回光路合束模块300-a，再由反射型偏振膜302反射沿第四方向射出光路合束模块300-a。
需要说明的是：由于第一光学图像的原偏振方向、第二光学图像的原偏振方向均与反射型偏振膜302的透射轴平行，则第一光学图像和第二光学图像均能透射过反射型偏振膜302射向相位延迟反射模块300-b，而经过相位延迟反射模块300-b改变后的偏振方向与原偏振方向垂直，即偏振方向发射改变的第一光学图像和第二光学图像不能透射过反射型偏振膜302，只能在反射型偏振膜302上发生反射，即改变偏振方向后的第一光学图像和第二光学图像均在反射型偏振膜302上发生反射分别沿第三方向和第四方向射出。
作为上述实施例的可选实施方式，半透半反射膜301的透光率和反光率分别为50%，能够理解的是，本发明中的VR光学系统可以根据实际使用情况选择其他数值透光率和反光率的半透半反射膜301。
作为上述实施方式的可选地实施方式，半透半反射膜301在第一方向的正投影面积与反射型偏振膜302在第一方向的正投影面积相等；
半透半反射膜301在第二方向的正投影面积与反射型偏振膜302在第二方向的正投影面积相等。
可以理解的是：半透半反射膜301在第一方向和第二方向的正投影面积与反射型偏振膜302在第一方向和第二方向的正投影面积相等，可以保证第一光学图像和第二光学图像在经过光路合束模块300-a的过程中的完整性，即保证第一光学图像和第二光学图像在显像区域显像时不会存在缺失。
作为上述实施例的可选地实施方式，半透半反射膜301、反射型偏振膜302在第一方向的正投影面积均与第一发光组件100的发光面积相等；能够理解的是前述三者面积相等，能够保证光路合束模块300-a能够完整的接受第一光学图像，保证第一光学图像的完整性。
作为上述实施例的可选实施方式，半透半反射膜301、反射型偏振膜302在第二方向的正投影面积均与第二发光组件200的发光面积相等；能够理解的是，前述三者面积相等，能够保证光路合束模块300-a能够完整的接受第二光学图像，保证第二光学图像的完整性。
作为上述实施例的可选实施发方式，相位延迟反射模块300-b包括相位延迟器400以及与相位延迟器400间隔设置的第三透镜500，相位延迟器400设置于第三透镜500与光路合束模块300-a之间；第三透镜500远离相位延迟器400的光学面设置有反射膜，用于将由相位延迟器400射向第三透镜500的光线反射回相位延迟器400。
具体的，第三透镜500具有第一光学面501和第二光学面502，第一光学面501和第二光学面502均与相位延迟器400的光学面平行，其中，第三透镜500靠近相位延迟器400的光学面为第一光学面501，远离相位延迟器400的光学面为第二光学面502，第二光学面502设置有反射膜，在第二光学面502设置有反射膜，第三透镜500用于将射向通过相位延迟器400的光学图像进行放大，并反射回相位延迟器400。
作为上述实施例的另一种可选实施方式，相位延迟器400包括设置于光路合束模块300-a一侧的相位延迟器400以及贴合于相位延迟器400远离光路合束模块300-a的光学平面的反射膜。
具体的，相位延迟器400具有平行的第三光学面401和第四光学面402，第三光学面401靠近光路合束模块300-a，第四光学面402远离光路合束模块300-a，在第四光学面402设置有反射膜，用于将经过相位延迟器400改变的光学图像反射回光路合束模块300-a。
作为上述实施方式的替代实施方式，设置于第二光学面502的反射膜或设置于第四光学面402的反射膜替换为反射镀层。
在本发明的一种实施方式中，第一光学图像的偏振方向与第二光学图像的偏振方向垂直时，第一夹角大于0°且小于或等于90°，光路折叠模组300为沿第一夹角的角平分线设置的偏光分光膜303；
偏光分光膜303的透射轴与第一光学图像的偏振方向平行；或
偏光分光膜303的透射轴与第二光学图像的偏振方向平行。
可以理解的是：偏振方向与偏光分光膜303的透射轴平行的光学图像直接穿过偏光分光膜303，偏振方向与偏光分光膜303的透射轴垂直的光学图像在偏光分光膜303上发生反射。
若第一光学图像的偏振方向与偏光分光膜303的透射轴平行，则第一光学图像直接穿过偏光分光膜303并沿第三方向射出光路折叠模组300，此时，第一方向与第三方向同向。
若第二光学图像的偏振方向与偏光分光膜303的透射轴平行，则第二光学图像直接穿过偏光分光膜303并沿第四方向射出光路折叠模组300，此时，第二方向与第三方向同向。
在本发明的一种实施方式中，第一发光组件100包括沿第一方向依次设置的第一发光面101以及平行于第一发光面101的第一透镜102；
第二发光组件200包括沿第二方向依次设置的第二发光面201以及平行于第二发光面201的第二透镜202。
可以理解的是：设置第一透镜102和第二透镜202用于对第一光学图像和第二光学图像进行放大，且第一发光面101和第二发光面201可以是直面显也可以是曲面。
在本发明的一种实施方式中，光路折叠模组300与显像区域之间还设置有第四透镜600，第一光学图像和第二光学图像透射过第四透镜600到达显像区域。
具体的，第四透镜600与显像区域形成的显像平面平行，用于对射向显像区域的第一光学图像和第二光学图像进行再次放大。
在本发明的一种实施方式中，VR光学系统包括第一发光平面、与第一发光平面平行的第一透镜102、与第一发光平面垂直的第二发光平面、与第二发光平面平行的第二透镜202，第一发光平面沿第一方向发射第一光学图像，第二发光平面沿第二方向发射第二光学图像，其中，第一光学图像和第二光学图像的偏振方向相同；VR光学系统还包括光路合束模块300-a、相位延迟器400和第三透镜500，其中第一发光平面和第一透镜102设置于光路合束模块300-a的一侧，第二发光平面和第二透镜202设置于光路合束模块300-a的另一侧，第二发光平面、第二透镜202、光路合束模块300-a、相位延迟器400以及第三透镜500沿第二方向依次间隔设置，第三透镜500具有相互平行的第一光学面501和第二光学面502，第一光学面501靠近相位延迟器400，第二光学面502远离相位延迟器400，第二光学面502设置有用于反射光学图像的反射膜；光路合束模块300-a包括彼此垂直且交叉设置的反射型偏振膜302和半透半反射膜301，半透半反射膜301沿第一方向和第二方向夹角的角平分线设置，反射型偏振膜302的透射轴与第一光学图像和第二光学图像的偏振方向平行，光路合束模块300-a与显像区域之间还设置有第四透镜600。
第一光学图像射向光路合束模块300-a后由光路合束模块300-a射向相位延迟器400，第一光学图像经相位延迟器400改变其偏振方向后射向第三透镜500，再由第二光学面502上的反射膜反射回光路合束器，最后第一光学图像沿第三方向从光路合束模块300-a射向显像区域；
第二光学图像射向光路合束模块300-a后由光路合束模块300-a射向相位延迟器400，第二光学图像经相位延迟器400改变其偏振方向后射向第三透镜500，再由第二光学面502上的反射膜反射回光路合束器，最后第二光学图像沿第四方向从光路合束模块300-a射向显像区域。
本实施方式在光学总长不变的情况下采用折叠光路，增加第一光学图像和第二光学图像的光程长，将第一光学图像和第二光学图像通过透镜进行三次放大，极大地提高了第一光学图像和第二光学图像的视场角。
作为上述实施方式的实际应用，第一透镜102和第二透镜202分别采用不同光焦度的透镜，以形成两个不同FOV的光学图像进行传输，调整第二夹角的大小使第一光学图和第二光学图像在显像区域进行重叠，并使最终显像图像呈现中心区域为小FOV高PPD画面，外部区域为大FOV低PPD画面，确保人眼主视区具有较高的清晰度。
在本发明的一种可选地实施方式中，第一透镜102、第二透镜202、第三透镜500和第四透镜600均采用双面凸透镜，对第一光学图像和第二光学图像进行放大。
本发明提供的VR光学系统可应用于多种VR显示设备，包括但不限于头戴式VR眼镜、VR显像屏等，由于该VR显示设备采用了上述实施例的部分或者全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本发明的可选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (20)

  1. 一种VR光学系统，其包括：
    光路折叠模组以及设置于所述光路折叠模组周侧的第一发光组件和第二发光组件；
    所述第一发光组件沿第一方向朝所述光路折叠模组发射第一光学图像，所述第二发光组件沿第二方向朝所述光路折叠模组发射第二光学图像；所述第一光学图像沿第三方向从所述光路折叠模组射向显像区域，所述第二光学图像沿第四方向从所述光路折叠模组射向所述显像区域并与所述第一光学图像在所述显像区域进行重叠；
    所述第一方向与所述第二方向具有第一夹角，所述第三方向与所述第四方向具有第二夹角；
    所述光路折叠模组被配置为可以通过调整所述第一夹角的角度以改变所述第二夹角的角度，从而调整所述第一光学图像与所述第二光学图像的重叠区域。
  2. 根据权利要求1所述的一种VR光学系统，其中，
    所述第一发光组件的发光偏振方向与所述第二发光组件发光偏振方向相同时，所述光路折叠模组包括光路合束模块和相位延迟反射模块；
    所述第一光学图像沿所述第一方向射入所述光路合束模块，再由所述光路合束模块射向所述相位延迟反射模块，然后由所述相位延迟反射模块射向所述光路合束模块，最后从所述光路合束模块沿第三方向射向所述显像区域；
    所述第二光学图像沿所述第二方向射入所述光路合束模块，再由所述光路合束模块射向所述相位延迟反射模块，然后由所述相位延迟反射模块射向所述光路合束模块，最后从所述光路合束模块沿第四方向射向所述显像区域。
  3. 根据权利要求2所述的一种VR光学系统，其中，
    所述第一光学图像改变后的偏振方向与其原偏振方向垂直，所述第二光学图像改变后的偏振方向与其原偏振方向垂直。
  4. 根据权利要求2所述的一种VR光学系统，其中，
    所述光路合束模块包括彼此垂直且交叉设置的反射型偏振膜和半透半反射膜，所述半透半反射膜沿所述第一夹角的角平分线设置，所述反射型偏振膜的透射轴与所述第一发光组件的发光偏振方向平行。
  5. 根据权利要求4所述的一种VR光学系统，其中，
    所述半透半反射膜在所述第一方向的正投影面积与所述反射型偏振膜在所述第一方向的正投影面积相等；
    所述半透半反射膜在所述第二方向的正投影面积与所述反射型偏振膜在所述第二方向的正投影面积相等。
  6. 根据权利要求4所述的一种VR光学系统，其中，
    所述半透半反射膜、反射型偏振膜在第一方向的正投影面积均与所述第一发光组件的发光面积相等；
    所述半透半反射膜、反射型偏振膜在第二方向的正投影面积均与所述第二发光组件的发光面积相等。
  7. 根据权利要求2所述的一种VR光学系统，其中，
    所述相位延迟反射模块包括相位延迟器以及与所述相位延迟器间隔设置的第三透镜，所述相位延迟器设置于所述第三透镜与所述光路合束模块之间；
    所述第三透镜远离所述相位延迟器的光学面设置有反射膜，用于将由所述相位延迟器射向所述第三透镜的光线反射回所述相位延迟器。
  8. 根据权利要求7所述的一种VR光学系统，其中，
    所述第三透镜具有第一光学面和第二光学面，所述第一光学面和所述第二光学面均与所述相位延迟器的光学面平行；其中，所述第三透镜靠近所述相位延迟器的光学面为所述第一光学面，远离所述相位延迟器的光学面为所述第二光学面，所述第二光学面设置有所述反射膜，所述第三透镜用于将射向通过所述相位延迟器的光学图像进行放大，并反射回所述相位延迟器。
  9. 根据权利要求7所述的一种VR光学系统，其中，
    所述反射膜为反射镀层。
  10. 根据权利要求2所述的一种VR光学系统，其中，
    所述相位延迟反射模块包括设置于光路合束模块一侧的相位延迟器以及贴合于所述相位延迟器远离所述光路合束模块的光学平面的反射膜。
  11. 根据权利要求10所述的一种VR光学系统，其中，
    所述相位延迟器具有平行的第三光学面和第四光学面，所述第三光学面靠近所述光路合束模块，所述第四光学面远离所述光路合束模块，所述在第四光学面设置有所述反射膜，用于将经过所述相位延迟器改变的光学图像反射回所述光路合束模块。
  12. 根据权利要求10所述的一种VR光学系统，其中，
    所述反射膜为反射镀层。
  13. 根据权利要求1所述的一种VR光学系统，其中，
    所述第一发光组件的发光偏振方向与所述第二发光组件的发光偏振方向垂直时，所述光路折叠模组为沿所述第一夹角的角平分线设置的偏光分光膜；
    所述偏光分光膜的透射轴与所述第一发光组件的发光偏振方向平行。
  14. 根据权利要求1所述的一种VR光学系统，其中，
    所述第一发光组件的发光偏振方向与所述第二发光组件的发光偏振方向垂直时，所述光路折叠模组为沿所述第一夹角的角平分线设置的偏光分光膜；
    所述偏光分光膜的透射轴与所述第二发光组件的发光偏振方向平行。
  15. 根据权利要求1所述的一种VR光学系统，其中，
    所述第一发光组件包括沿所述第一方向依次设置的第一发光面以及平行于所述第一发光面的第一透镜；
    所述第二发光组件包括沿所述第二方向依次设置的第二发光面以及平行于所述第二发光面的第二透镜。
  16. 根据权利要求15所述的一种VR光学系统，其中，
    所述第一透镜为双面凸透镜；所述第二透镜为双面凸透镜。
  17. 根据权利要求15所述的一种VR光学系统，其中，
    所述第一发光面为直面；所述第二发光面为直面。
  18. 根据权利要求1所述的一种VR光学系统，其中，
    所述光路折叠模组与所述显像区域之间还设置有第四透镜，所述第一光学图像和所述第二光学图像透射过所述第四透镜到达所述显像区域。
  19. 根据权利要求1所述的一种VR光学系统，其中，
    所述第四透镜与所述显像区域形成的显像平面平行，用于对射向所述显像区域的所述第一光学图像和所述第二光学图像进行再次放大。
  20. 根据权利要求1所述的一种VR光学系统，其中，
    所述第一夹角大于0°且小于180°；所述第二夹角大于0°且小于180°。
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Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
CN114371557B (zh) * 2022-01-17 2024-02-09 惠州Tcl移动通信有限公司 一种vr光学系统
CN115857216A (zh) * 2022-12-15 2023-03-28 维沃移动通信有限公司 显示方法、设备和系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11237584A (ja) * 1997-12-19 1999-08-31 Sharp Corp 画像表示装置、該画像表示装置を用いた頭部装着型ディスプレイ及び映像通信装置
CN107561704A (zh) * 2016-06-30 2018-01-09 三星显示有限公司 头戴式显示装置和驱动该头戴式显示装置的方法
CN108572453A (zh) * 2018-03-20 2018-09-25 友达光电股份有限公司 显示器
CN110208948A (zh) * 2019-06-03 2019-09-06 歌尔股份有限公司 光学系统及具有其的虚拟现实设备
CN209542962U (zh) * 2018-12-12 2019-10-25 深圳创维新世界科技有限公司 一种vr眼镜
CN113253457A (zh) * 2021-05-11 2021-08-13 京东方科技集团股份有限公司 一种显示设备及其显示控制方法
CN114371557A (zh) * 2022-01-17 2022-04-19 惠州Tcl移动通信有限公司 一种vr光学系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205562977U (zh) * 2016-03-21 2016-09-07 深圳多哚新技术有限责任公司 短距离光学放大模组、眼镜、头盔及vr系统
US10001654B2 (en) * 2016-07-25 2018-06-19 Disney Enterprises, Inc. Retroreflector display system for generating floating image effects
CN106444058B (zh) * 2016-09-28 2019-08-23 惠州Tcl移动通信有限公司 虚拟现实显示头戴设备及光学组件
US10739586B1 (en) * 2017-08-07 2020-08-11 Facebook Technologies, Llc Reflective polarizer for augmented reality and virtual reality display
CN107589546B (zh) * 2017-10-23 2024-05-24 北京小米移动软件有限公司 光学系统及增强现实眼镜
CN108681068B (zh) * 2018-02-12 2023-03-21 优奈柯恩(北京)科技有限公司 Ar显示装置和穿戴式ar设备
CN209167797U (zh) * 2018-12-11 2019-07-26 中强光电股份有限公司 成像系统以及投影装置
CN209496201U (zh) * 2019-03-28 2019-10-15 歌尔科技有限公司 Vr光学系统及vr显示设备
CN110265455B (zh) * 2019-06-25 2020-11-24 武汉华星光电半导体显示技术有限公司 一种显示面板及显示装置
CN111367085A (zh) * 2020-04-30 2020-07-03 宁波鸿蚁光电科技有限公司 一种具有折叠光路的光学显示系统及ar设备
CN113489960A (zh) * 2021-06-30 2021-10-08 青岛海信激光显示股份有限公司 投影显示设备、方法及系统
CN113721415B (zh) * 2021-08-30 2022-10-28 歌尔光学科技有限公司 投影光机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11237584A (ja) * 1997-12-19 1999-08-31 Sharp Corp 画像表示装置、該画像表示装置を用いた頭部装着型ディスプレイ及び映像通信装置
CN107561704A (zh) * 2016-06-30 2018-01-09 三星显示有限公司 头戴式显示装置和驱动该头戴式显示装置的方法
CN108572453A (zh) * 2018-03-20 2018-09-25 友达光电股份有限公司 显示器
CN209542962U (zh) * 2018-12-12 2019-10-25 深圳创维新世界科技有限公司 一种vr眼镜
CN110208948A (zh) * 2019-06-03 2019-09-06 歌尔股份有限公司 光学系统及具有其的虚拟现实设备
CN113253457A (zh) * 2021-05-11 2021-08-13 京东方科技集团股份有限公司 一种显示设备及其显示控制方法
CN114371557A (zh) * 2022-01-17 2022-04-19 惠州Tcl移动通信有限公司 一种vr光学系统

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