WO2015058625A1 - 头戴透视显示装置 - Google Patents

头戴透视显示装置 Download PDF

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Publication number
WO2015058625A1
WO2015058625A1 PCT/CN2014/088433 CN2014088433W WO2015058625A1 WO 2015058625 A1 WO2015058625 A1 WO 2015058625A1 CN 2014088433 W CN2014088433 W CN 2014088433W WO 2015058625 A1 WO2015058625 A1 WO 2015058625A1
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Prior art keywords
lens
display screen
display
head
display device
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PCT/CN2014/088433
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English (en)
French (fr)
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卫荣杰
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卫荣杰
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Priority claimed from CN201310502746.8A external-priority patent/CN103499880B/zh
Priority claimed from CN201320655918.0U external-priority patent/CN203658670U/zh
Application filed by 卫荣杰 filed Critical 卫荣杰
Publication of WO2015058625A1 publication Critical patent/WO2015058625A1/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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • 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
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • 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
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements

Definitions

  • the invention belongs to the field of head-mounted display technology, and in particular relates to a head-mounted see-through display device.
  • the prior art head-mounted display mainly includes a single-channel full-shielded direct-view type and a dual-channel perspective environment superimposing type, and the dual-channel see-through environment is superimposed to fit the wearable smart device, but cannot be used in sunlight, and the environment superimposed hard to recognize the display image.
  • the details such as the text and the texture in the picture, the single-channel full-shielded direct-view type can adapt to the ambient light, but most of the display should block the important vision of the environment, and the display area can not be enlarged; in most wearable smart device head-mounted displays It is a single-eye display. Due to the double-screen dual-screen solution, it is difficult to carry out portable wear, and the unstable structure of the split screen causes unstable stereoscopic display, poor use and appearance is difficult to go out. Therefore, the prior art has defects and needs to be For further improvement and development.
  • a technical solution for achieving the object of the present invention is: a head-mounted see-through display device comprising a head-mounted body, the head-mounted body comprising a body of the tongue disposed in front of the forehead, a display screen and a transflective lens, a front end of the cap body is provided with a hinge, and the transflective lens is disposed under the front end of the cap body by an angle adjustable by the hinge, and the display screen is fixed in the cap body and the display surface Cooperating with the center of the transflective lens, the image light of the display screen is projected onto the transflective lens, and the transflective lens will reflect the reflected image of the display screen with the transflective
  • the external ambient light of the lens is optically synthesized and projected onto the human eye for imaging.
  • the display screen includes a front lenticular lens grating sheet and a display pixel panel, the lenticular lens grating sheet is attached and fixed on a front surface of the display pixel panel, and the pixels of the display pixel panel pass through the lenticular lens grating sheet
  • the lenticular lens grating deflects the pixel rays of the adjacent columns to different directions of the left and right and each forms an angle of 30° to 60°.
  • the display screen further includes a backlight grating sheet, and the backlight grating sheet is applied to the display pixel panel
  • the backlight grating has a backlight light adjustment angle corresponding to each column of pixels, and the adjacent pixel column rays are deflected to different directions in the left and right directions and each forms an angle of 30° to 60°.
  • the transflective lens comprises a curved mirror lens or a spherical mirror lens, and an antireflection film layer for enhancing light reflection is plated on the surface of the curved mirror lens or the spherical lens of the human eye.
  • a transparent capacitive touch film layer is bonded to the outer surface of the transflective lens.
  • a dimming grayscale TFT panel layer for adjusting the transparency of the transflective lens is further disposed between the transparent capacitive touch film layer and the curved mirror lens or the spherical mirror lens.
  • the display screen is provided with an image processing module for performing anti-distortion pre-processing on different pixel arrays to cancel distortion of the optical component, the image processing module and the display screen, the transparent capacitive electric touch film layer and the dimming gray-scale TFT respectively
  • the panel layers are connected.
  • the display screen is a flexible and flexible liquid crystal display.
  • the invention has a positive effect: the invention has a simple structure, a display screen is arranged in the body of the cap, and a semi-transparent lens is arranged on the front lower side of the body of the cap.
  • the image light of the display screen is projected to On the transflective lens, the transflective lens projects the received image light of the display screen and the ambient light transmitted through the transflective lens to the human eye for imaging, which has good display stability and is suitable for different ambient light intensity, to a certain extent.
  • the applicability is improved, the immersive and augmented reality of the wearable intelligent display system is combined, and the interactive and real-time interaction is improved; and the display screen comprises a front lenticular lens grating and a display pixel panel and a backlight grating.
  • the displayed image has a strong stereoscopic effect, and the overall structure is relatively stable, lighter in weight, compact in size, convenient to wear, and practical.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a cross-sectional structural view of the display screen of Figure 1;
  • FIG. 3 is a schematic cross-sectional structural view of the transflective lens of FIG. 1;
  • Figure 4 is a schematic view of the binocular optical path of the invention.
  • Figure 5 is a schematic illustration of a portion of the image distortion image.
  • FIG. 1 and FIG. 5 show a specific embodiment of the present invention, wherein FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic cross-sectional structural view of the display screen of FIG. 1; Schematic diagram of the cross-sectional structure; FIG. 4 is a schematic diagram of the optical path of the binocular of the invention; FIG. 5 is a schematic diagram of the mirror image of the portion of the image.
  • a head-mounted see-through display device includes a head body including a body 1 disposed in front of the forehead, and further includes a display screen 2 and a transflective portion a reverse lens 3, at the front end of the visor body 1, a hinge 4 is provided, and the transflective lens 3 is disposed at an angle below the front end of the visor body 1 by the hinge 4, the display
  • the screen 2 is fixed in the body 1 and the display surface cooperates with the center of the transflective lens 3, and the image light 6 of the display screen 2 is projected onto the transflective lens 3,
  • the transflective lens 3 optically combines the received display screen image light with the ambient light 7 transmitted through the transflective lens and projects it to the human eye 8 for imaging.
  • the image light emitted by the display screen is reflected into the human eye through the transflective lens, and the ambient light passes through the partially transparent transflective lens directly into the user's eyes to realize the superposition of the external scene and the virtual image.
  • the image light of the display screen is projected onto the transflective lens, and the transflective lens projects the received image image light and the ambient light transmitted through the transflective lens to the human eye for imaging.
  • Good sex suitable for different ambient light intensity, to a certain extent improve the applicability.
  • the display screen 2 includes a front lenticular lens grating sheet 21 and a display pixel panel 22, and the lenticular lens grating sheet 21 is attached and fixed to the front surface of the display pixel panel 22, the display pixel
  • the lenticular lens grating sheet 21 deflects adjacent pixel light rays in different directions from left to right and each forms an angle of 30 to 60 degrees.
  • the display screen comprises a front lenticular lens grating and a display pixel panel and a backlight grating sheet, so that the displayed image has a strong stereoscopic effect, the overall structure is relatively stable, the weight is lighter, the volume is small, the wearing is convenient, and the utility is good.
  • the display screen 2 further includes a backlight grating sheet 23, the backlight grating sheet 23 is applied to the back surface of the display pixel panel 22, and the backlight grating sheet 23 adjusts the backlight light to an angle corresponding to each column of pixels, so that adjacent pixels
  • the column rays are deflected to different directions in the left and right directions and each form an angle of 30 to 60 degrees.
  • the transflective lens 3 includes a curved mirror lens 31 or a spherical mirror lens, which mainly balances the amount of deformation, sharpness and collimation of the virtual image to be reflected and displayed;
  • the face of the human eye of the mirror lens or the spherical lens is plated with an anti-reflection film layer 32 for enhancing light reflection.
  • the enhanced anti-membrane layer comprises multiple, multi-layer, composite coatings for multiple light wavelengths and different transparency for realizing the reflection of virtual images while imaging the human eye while looking at the external environment.
  • the background light minus the liquid crystal panel does not allow the liquid crystal deflection to maintain a high light transmittance; when the external light is bright, the background light minus the liquid crystal panel 11 deflects the liquid crystal to reduce the light transmittance.
  • a transparent capacitive touch film layer 33 is bonded to the outer surface of the transflective lens 3.
  • a dimming gradation TFT panel layer 34 for adjusting the transparency of the transflective lens is further disposed between the transparent capacitive touch film layer 33 and the curved mirror lens 31 or the spherical mirror lens.
  • the transparent capacitive touch film layer is convenient for the user to directly use the system operation interface corresponding to the image position in the intuitive AR display; the dimming gray TFT panel layer 34 is mainly used to block the external or partial external light attenuation, and cooperate with the virtual image.
  • the local ambient backlight needs to be deducted to highlight the portion to be virtually displayed.
  • FIG. 4 shows a schematic diagram of a binocular viewing image image, which is provided with an image processing module that performs inverse distortion preprocessing on different pixel arrays to cancel optical component distortion, the image processing.
  • the modules are respectively connected to the display screen 2, the transparent capacitive electric touch film layer 33, and the dimmed grayscale TFT panel layer 34.
  • the image processing module is used for correcting the distortion, rotation and adjusting the angle of the line of sight of the transflective lens during the reflection process, so that the display screen will display two pre-distorted images 9 of different pixel arrays to match the translucent half.
  • the distortion, rotation and angle of sight of the two eyes during the reflection of the lens 3 are such that two correct eye images 10, 5 are obtained.
  • the display screen is a flexible and flexible liquid crystal display. Easy to wear electronic products and optical needs.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种头戴透视显示装置，包括头戴本体。头戴本体包括显示屏（2）、半透半反镜（3）以及设置在额头前方的帽舌体（1）。帽舌体（1）的前端设有铰链（4），半透半反镜（3）通过铰链（4）角度可调地设置在帽舌体（1）的前端下方。显示屏（2）固定在帽舌体（1）内，显示屏（2）的显示面与半透半反镜（3）中心相配合。显示屏（2）的图像光线投射至半透半反镜（3）上，半透半反镜（3）反射来自显示屏（2）的图像光线，该反射光线与透过半透半反镜（3）的外环境光线（7）光学地合成后投射至人眼（8）成像。这种头戴透视显示装置结构简单，显示稳定性好，适用于不同环境光照强度，具有良好的交互性和互动实时性。

Description

头戴透视显示装置 技术领域
本发明属于头戴显示技术领域，具体涉及一种头戴透视显示装置。
背景技术
现有技术的头戴显示器主要包括单通道全屏蔽式直视型和双通道透视环境叠加型，双通道透视环境叠加型适应穿戴智能设备，但是在阳光下无法使用，而且环境叠加难以识别显示图像的细节如文字和图片中的纹理，单通道全屏蔽式直视型可以适应环境光线，但是大多显示器要遮挡环境重要视野，显示区域也不能做大；在大多数穿戴智能设备头戴显示器中大多是单眼显示，由于双眼双屏方案体积重量都难以做到便携穿戴，而且运动中分屏结构不稳定造成立体显示不稳定，使用感受差，外观也难以出门；因此，现有技术存在缺陷，有待于进一步改进和发展。
发明内容
本发明的目的是提供是提供一种结构简单、使用稳定性好且可以实现不同光强环境下透视的头戴透视显示装置。
实现本发明目的的技术方案是：一种头戴透视显示装置，包括头戴本体，所述头戴本体包括设置在额头前方的帽舌体，还包括显示屏和半透半反镜片，在所述帽舌体的前端设有铰链，所述半透半反镜片通过所述铰链可调角度式设置在所述帽舌体的前端下方，所述显示屏固定在所述帽舌体内且显示面与所述半透半反镜片中心相配合，所述显示屏的图像光线投射至所述半透半反镜片上，所述半透半反镜片将反射的显示屏图像光线与透过半透半反镜片的外环境光线光学地合成后投射至人眼成像。
所述显示屏包括正面的柱状透镜光栅片和显示像素面板，所述柱状透镜光栅片贴敷固定在与所述显示像素面板的正面，所述显示像素面板的像素经过所述柱状透镜光栅片时，所述柱状透镜光栅片将相邻列的像素光线偏转至左右不同方向且各形成30°～60°的夹角。
所述显示屏还包括背光光栅片，所述背光光栅片贴敷于显示像素面板 的背面，且所述背光光栅片将背光光线调整角度对应每列像素，使相邻的像素列光线偏转至左右不同方向且各形成30°～60°的夹角。
所述半透半反镜片包括曲面镜镜片或球面镜镜片，在所述曲面镜镜片或球面镜镜片的人眼所视面上镀有用于增强光线反射的增反膜层。
在所述半透半反镜片的外表面贴合有透明电容触摸膜层。
在所述透明电容触摸膜层与所述曲面镜镜片或球面镜镜片之间还设有用于调整半透半反镜片透明度的减光灰度TFT面板层。
所述显示屏上设有对不同像素阵列进行反畸变预处理来抵消光学元件畸变的图像处理模块，所述图像处理模块分别与所述显示屏、透明电容电触摸膜层和减光灰度TFT面板层相连接。所述显示屏为柔性可弯曲的液晶显示屏。
本发明具有积极的效果：本发明的结构简单，在帽舌体内设有显示屏，且在帽舌体的前下方设有半透半反透镜，在使用过程中，显示屏的图像光线投射至半透半反镜片上，半透半反镜片将接收的显示屏图像光线与透过半透半反镜片的环境光线投射至人眼成像，其显示稳定性好，适用于不同环境光照强度，一定程度上提高了适用性，实现了穿戴智能显示系统的沉浸性和增强现实性结合，提高了交互性和实时性互动；并且，显示屏包括正面的柱状透镜光栅片和显示像素面板和背光光栅片，使显示的图像立体感较强，其整体结构较为稳定，重理较轻，体积小巧，方便穿戴，实用性好。
附图说明
为了使本发明的内容更容易被清楚的理解，下面根据具体实施例并结合附图，对本发明作进一步详细的说明，其中：
图1为本发明的结构示意图；
图2为图1中显示屏的剖面结构示意图；
图3为图1中半透半反镜片的剖面结构示意图；
图4为发明的双眼光路示意图；
图5为部位成像畸变镜像的示意图。
具体实施方式
(实施例1)
图1和图5显示了本发明的一种具体实施方式，其中图1为本发明的结构示意图；图2为图1中显示屏的剖面结构示意图；图3为图1中半透半反镜片的剖面结构示意图；图4为发明的双眼光路示意图；图5为部位成像畸变镜像的示意图。
见图1至图5，其中如图1，一种头戴透视显示装置，包括头戴本体，所述头戴本体包括设置在额头前方的帽舌体1，还包括显示屏2和半透半反镜片3，在所述帽舌体1的前端设有铰链4，所述半透半反镜片3通过所述铰链4可调角度式设置在所述帽舌体1的前端下方，所述显示屏2固定在所述帽舌体1内且显示面与所述半透半反镜片3中心相配合，所述显示屏2的图像光线6投射至所述半透半反镜片3上，所述半透半反镜片3将接收的显示屏图像光线与透过半透半反镜片的外环境光线7光学地合成后投射至人眼8成像。显示屏发出的图像光线经过半透半反镜片反射至人体眼睛内，同时外界环境光线透过部分透明的半透半反镜片直接进入用户眼睛，实现外景和虚拟图像的叠加。在使用过程中，显示屏的图像光线投射至半透半反镜片上，半透半反镜片将接收的显示屏图像光线与透过半透半反镜片的环境光线投射至人眼成像，其显示稳定性好，适用于不同环境光照强度，一定程度上提高了适用性。
见图2所示，所述显示屏2包括正面的柱状透镜光栅片21和显示像素面板22，所述柱状透镜光栅片21贴敷固定在与所述显示像素面板22的正面，所述显示像素面板22的像素经过所述柱状透镜光栅片21时，所述柱状透镜光栅片21将相邻的像素光线偏转左右不同方向且各形成30°～60°的夹角。显示屏包括正面的柱状透镜光栅片和显示像素面板和背光光栅片，使显示的图像立体感较强，其整体结构较为稳定，重理较轻，体积小巧，方便穿戴，实用性好。
所述显示屏2还包括背光光栅片23，所述背光光栅片23贴敷于显示像素面板22的背面，且所述背光光栅片23将背光光线调整角度对应每列像素，使相邻的像素列光线偏转至左右不同方向且各形成30°～60°的夹角。见图3所示，所述半透半反镜片3包括曲面镜镜片31或球面镜镜片，主要使要反射显示的虚拟图像变形量、清晰度、准直度得到较好的平衡；在所述曲面镜镜片或球面镜镜片的人眼所视面上镀有用于增强光线反射的增反膜层32。增强反膜层包括多次、多层、针对多种光线波长和不同透明度的复合镀膜，用于实现反射虚拟图像在人眼成像的同时透视外界环境。当外 部光线较暗时，背景光减除液晶面板就不让液晶偏转保持较高的通光度；当外部光线较亮时，背景光减除液晶面板11就让液晶偏转来降低通光度。
在所述半透半反镜片3的外表面贴合有透明电容触摸膜层33。
在所述透明电容触摸膜层33与所述曲面镜镜片31或球面镜镜片之间还设有用于调整半透半反镜片透明度的减光灰度TFT面板层34。使用透明电容触摸膜层便于用户在直观的AR显示中用手直接在对应图像位置的系统操作界面；减光灰度TFT面板层34主要用于阻挡整体或局部的外界光线减弱，同时配合虚拟图像需要扣除局部环境背光，来凸出要虚拟显示的部分。
见图4和图5所示，图4显示了双眼观看图像镜像的示意图，所述显示屏上设有对不同像素阵列进行反畸变预处理来抵消光学元件畸变的图像处理模块，所述图像处理模块分别与所述显示屏2、透明电容电触摸膜层33和减光灰度TFT面板层34相连接。。图像处理模块用于矫正半透半反镜片在反射过程中的畸变、旋转和调整两眼视线夹角，使显示屏将显示两幅不同像素阵列预先畸变处理过的图像9，来配合半透半反镜片3反射过程中的畸变、旋转和两眼视线夹角，使之得到两幅正确入眼图像10、5。
所述显示屏为柔性可弯曲的液晶显示屏。便于穿戴电子产品和光学需要。
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的实质精神所引伸出的显而易见的变化或变动仍属于本发明的保护范围。

Claims (8)

  1. 一种头戴透视显示装置，包括头戴本体，所述头戴本体包括设置在额头前方的帽舌体，其特征在于：还包括显示屏和半透半反镜片，在所述帽舌体的前端设有铰链，所述半透半反镜片通过所述铰链可调角度式设置在所述帽舌体的前端下方，所述显示屏固定在所述帽舌体内且显示面与所述半透半反镜片中心相配合，所述显示屏的图像光线投射至所述半透半反镜片上，所述半透半反镜片将反射的显示屏图像光线与透过半透半反镜片的外环境光线光学地合成后投射至人眼成像。
  2. 根据权利要求1所述的头戴透视显示装置，其特征在于：所述显示屏包括正面的柱状透镜光栅片和显示像素面板，所述柱状透镜光栅片贴敷固定在与所述显示像素面板的正面，所述显示像素面板的像素经过所述柱状透镜光栅片时，所述柱状透镜光栅片将相邻列的像素光线偏转至左右不同方向且各形成30°～60°的夹角。
  3. 根据权利要求2所述的头戴透视显示装置，其特征在于：所述显示屏还包括背光光栅片，所述背光光栅片贴敷于显示像素面板的背面，且所述背光光栅片将背光光线调整角度对应每列像素，使相邻的像素列光线偏转至左右不同方向且各形成30°～60°的夹角。
  4. 根据权利要求3所述的头戴透视显示装置，其特征在于：所述半透半反镜片包括曲面镜镜片或球面镜镜片，在所述曲面镜镜片或球面镜镜片的人眼所视面上镀有用于增强光线反射的增反膜层。
  5. 根据权利要求4所述的头戴透视显示装置，其特征在于：在所述半透半反镜片的外表面贴合有透明电容触摸膜层。
  6. 根据权利要求5所述的头戴透视显示装置，其特征在于：在所述透明电容触摸膜层与所述曲面镜镜片或球面镜镜片之间还设有用于调整半透半反镜片透明度的减光灰度TFT面板层。
  7. 根据权利要求6所述的头戴透视显示装置，其特征在于：所述显示屏上设有对不同像素阵列进行反畸变预处理来抵消光学元件畸变的图像处理模块，所述图像处理模块分别与所述显示屏、透明电容电触摸膜层和减光灰度TFT面板层相连接。
  8. 根据权利要求7所述的头戴透视显示装置，其特征在于：所述显示屏为柔性可弯曲的液晶显示屏。
PCT/CN2014/088433 2013-10-23 2014-10-12 头戴透视显示装置 WO2015058625A1 (zh)

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