CN203433192U - Head mounted display HMD - Google Patents

Head mounted display HMD Download PDF

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Publication number
CN203433192U
CN203433192U CN 201320446198 CN201320446198U CN203433192U CN 203433192 U CN203433192 U CN 203433192U CN 201320446198 CN201320446198 CN 201320446198 CN 201320446198 U CN201320446198 U CN 201320446198U CN 203433192 U CN203433192 U CN 203433192U
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display
surface
prism
hmd
see
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CN 201320446198
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Chinese (zh)
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黄琴华
刘桓宇
宋海涛
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成都理想境界科技有限公司
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Abstract

The utility model discloses a head mounted display HMD. The HMD comprises a lens rack, a display system and a control system, wherein the display system comprises a micro image display, a curved surface prism, a compensation prism and a pixel level visual permeability rate adjustable display screen, wherein the curved surface prism is a free curved surface prism with three optical surfaces, and viewed from a viewer, the compensation prism is arranged on the outer side of the curved surface prism and optically cemented with the curved surface prism; the micro image display is used for displaying computer generated images CGI, and the pixel level visual permeability rate adjustable display screen is arranged on the outer side of the compensation prism and used for controlling the proportion of the external scene light ray into the eyes. The special optical system structure of the HMD makes the exit pupil diameter large and makes the distortion small. The visual permeability rate can be controlled in the pixel level, the requirements of users for HMD comfort degree, definition or the like are met to the maximum extent, the eye fatigue due to using the HMD is lightened, and the availability of the HMD is greatly improved.

Description

—种头戴显示装置HMD - head-mounted display device of HMD Species

技术领域 FIELD

[0001] 本实用新型涉及可穿戴计算头戴显示设备领域,尤其涉及一种头戴显示装置HMD。 [0001] The present invention relates to the field of wearable computing head-mounted display device, particularly to a head-mounted display HMD device. 背景技术 Background technique

[0002]头戴显不器(HMD, Head mounted display)又称抬头显不器(HUD, Head updisplay),是一种至少包含一个微型显示器件(像源系统)、相应的光学系统、以及支持结构(支持系统)的近眼显示装置。 [0002] The headset is not significant (HMD, Head mounted display) devices, also known as not rise significantly (HUD, Head updisplay), comprising at least one is a micro-display device (image source system), the corresponding optical system, and supporting structure (support system) of the near-eye display device. 视透式HMD具有其特殊的人机交互特性,能够结合增强现实技术,广泛应用于科研、军事、工业、游戏、视频、教育、仿真等各个领域。 See-through type HMD have a special interactive features to combine augmented reality technology, widely used in scientific research, military, industrial, gaming, video, education, simulation and so on. 光学系统在HMD中起着关键性作用,如果光学系统不能很好的校正系统的相差和畸变,用户看到的将会是扭曲和不清晰的图像,现有技术中,畸变校正效果均一般。 The optical system plays a critical role in the HMD, if the optical system is not good distortion correction system and phase difference, the user will see a distorted and unclear images, the prior art, the distortion correction effects are general. 另外在不同的光照环境下,视透率是否合适也直接决定用户对HMD的体验度(视透率描述的是视透式HMD的视透效果)。 Further in different lighting conditions, depending on the penetration rate is also appropriate to directly determine the HMD user experience (see-through rate is described see-through-type HMD through visual effects). 现有视透式HMD通常采用半透半反膜技术或液晶光阀来实现对透式率的控制,半透半反膜的光学参数是固定的,一经完成,其对光的衰减程度也随之确定,不能够自动的加以调整。 Conventional see-through type HMD usually transflective film technology or liquid crystal light valve to achieve control of the rate of penetration type, transflective film optical parameters are fixed, upon completion, the degree of attenuation which is also light with the determination can not be adjusted automatically. 也就是说,我们无法使50/50的镀膜,既实现透射率和反射率各50%,又实现60%的透射率和40%的反射率。 In other words, we can not make a 50/50 coating, to achieve both transmittance and reflectance, 50% and achieve 60% transmittance and reflectance of 40%. 而晶光阀的液晶层整体为一个大像素,因此液晶光阀对视透率的调节是以光阀的液晶面板为面积单位,无法达到像素级视透率的调节。 And the overall liquid crystal light valve layer for a large pixel, thus regulating the liquid crystal panel of the liquid crystal light valve of the see-through light valve is a unit of area, depending on the penetration rate adjustment pixel level can not be achieved.

实用新型内容 SUMMARY

[0003] 本实用新型的目的是提供一种头戴显示装置HMD,解决现有HMD光学系统及视透率调节问题上的缺陷,实现像素级视透率的调节。 [0003] The object of the present invention is to provide a head-mounted display HMD device, an optical system to solve the drawbacks of the prior and the see-through HMD rate adjustment problems, depending on the penetration rate adjustment pixel-level implementation.

[0004] 为了实现上述实用新型目的,本实用新型提供了一种头戴显示装置HMD,包括镜架、显示系统和控制系统,所述显示系统包括微型图像显示器、曲面棱镜、补偿棱镜和像素级视透率可调显示屏,所述曲面棱镜为具有三个光学表面的自由曲面棱镜,从观察者侧看,补偿棱镜位于曲面棱镜外侧,且补偿棱镜与曲面棱镜光学胶合;像素级视透率可调显示屏位于补偿棱镜外侧;微型图像显示器用于显示计算机生成图像CGI图像,像素级视透率可调显示屏用于控制外界场景光线射入人眼的比例,微型图像显示器发出的光线先经过曲面棱镜的第一表面透射进入曲面棱镜,然后在第二表面的内侧发生全反射,再经第三表面反射,最后再次经过第二表面透射进入人眼,所述曲面棱镜的第三表面镀有半反半透膜;外界场景光线首先经过像素级视透率可调显示屏透射, [0004] To achieve the above invention object, the present invention provides a head-mounted display HMD apparatus, comprising frames, a display system and a control system, said display system comprises a miniature image display surface prism, and the pixel level compensating prism see-through display screen adjustable rate, the curved surface is a free-form surface prism having three optical surfaces of the prism, viewed from the viewer's side, compensating prism surface of the prism located outside, and the compensating prism and the optical prism cemented surface; penetration rate depends on the pixel level adjustable compensating prism located outside the display screen; miniature visual image display for displaying computer generated images CGI image, pixel-level view of the adjustable light penetration rate proportional display for controlling ambient scene light into the eye, the miniature image display is issued to after a first surface of the curved surface prism transmitted into the prism, and then is totally reflected inside the second surface, and then reflected by the third surface, and finally again passes through the second surface of the transmission into the eye, the curved surface of the third prism plating there transflective film; ambient scene light first passes through the pixel-level view of an adjustable transmission display, 然后经补偿棱镜第二表面透射进入补偿镜,然后经过补偿棱镜第一表面、曲面棱镜的第三表面和第二表面进入人眼。 Through the second prism surface is then transmitted into compensated compensation mirror, and then through a first compensating prism surface, the second surface of the curved surface and the third prism into the eye.

[0005] 优选的,补偿棱镜的第一表面和第二表面的面型分别与曲面棱镜的第二表面、第三表面的面型相同。 [0005] Preferably, the surface-type first and second surfaces, respectively, of the compensating prism and the second prism surface curved with the same surface of the third surface.

[0006] 优选的,曲面棱镜的三个光学表面的面型满足以下条件方程: [0006] Preferably, the surface-type three curved optical surfaces of the prism satisfy the following conditional equation:

Figure CN203433192UD00051

[0008] 其中C为曲面曲率半径,Cj为多项式系数。 [0008] where C is a curvature radius of a curved surface, Cj polynomial coefficients.

[0009] 优选的,所述控制系统包括存储模块、控制处理器、显示模块电路和外围电路,其中:显示模块电路包括图形处理器,图形处理器输出两路视频信号,一路为微型图像显示器提供CGI图像,另一路为像素级视透率可调显示屏提供用于控制视透率的图像信号;外围电路包括外部通信接口,用于与头戴显示装置进行交互,所述外部通信接口包括Wi-Fi、蓝牙、GPS、GPRS、USB中的一种或多种。 [0009] Preferably, the control system includes a storage module, the control processor, a display module circuit and a peripheral circuit, wherein: the display module circuitry includes a graphics processor, a graphics processor output two video signals, as a way to provide miniature visual image display CGI image, another see-through path for the pixel level of the display image signal is adjustable for controlling the see-through rate; peripheral circuit comprises an external communication interface for interacting with a head-mounted display device, the external communication interface includes a Wi -Fi, Bluetooth, GPS, GPRS, USB in one or more.

[0010] 优选的,所述HMD还包括用于感知环境光强的感光装置,感光装置将光强信息经控制处理器发送给图形处理器,图形处理器根据光强信息对像素级视透率可调显示屏的整个区域进行视透率调节,在所述控制系统中预先设置有光强与视透率的映射关系。 [0010] Preferably, the HMD further comprises sensing light intensity in the light receiving means, light receiving means transmits light intensity information via the control processor to the graphics processor, a graphics processor for pixel-level optical see-through rate for intensity information the entire area of ​​the display be adjustable depending on the penetration rate adjustment, the mapping relationship between the light intensity and set depending on the penetration rate of the control system in advance.

[0011] 优选的,图形处理器根据检测到的微型图像显示器的被点亮区域,调节像素级视透率可调显示屏所对应区域的视透率。 [0011] Preferably, the graphics processor in accordance with the detected illuminated region of the miniature image display, pixel-level adjustment see-through view of an adjustable penetration rate corresponding to the display area.

[0012] 优选的,图形处理器根据从应用程序里提取出的虚拟信息在微型图像显示器上的呈现区域信息,调节像素级视透率可调显示屏所对应区域的视透率。 [0012] Preferably, according to the virtual graphics processor presents information extracted from the application in miniature visual image display on the area information, see-through level adjustment pixel see-through rate adjustable rate corresponding to the display area.

[0013] 优选的,图形处理器根据用户语音、手势、触摸指令中的一种或多种,调节像素级视透率可调显示屏所对应区域的视透率。 [0013] Preferably, the graphic processor according to the user's voice, gestures, the touch of one or more instruction, depending on the penetration rate adjustment pixel level adjustable see-through display of the corresponding area.

[0014] 优选的,所述像素级视透率可调显示屏为透明单色IXD显示屏或透明单色OLED显示屏。 [0014] Preferably, the pixel-level view of an adjustable lens or the display screen is monochrome transparent transparent monochrome IXD OLED display.

[0015] 优选的,所述微型图像显示器为LED显示屏、OLED显示屏、LCoS显示屏中的一种。 [0015] Preferably, the miniature image display is an LED display, the OLED display a LCoS display.

[0016] 与现有技术相比,本实用新型具有如下有益效果: [0016] Compared with the prior art, the present invention has the following advantages:

[0017] 本实用新型实施例的HMD,一方面采用三个光学表面的自由曲面棱镜结合补偿棱镜,使得整个HMD的光学系统出瞳直径大,畸变小,另一方面采用了一块像素级控制视透率的显示屏来调节HMD的视透率,能最大程度的满足用户对HMD舒适度、清晰度等方面的需求,降低了HMD使用时对眼睛造成的疲劳感,极大的提高了HMD的可用性。 [0017] Example embodiment of the present invention HMD, using the free-form surface prisms on the one hand three binding compensating prism optical surface, so that the entire optical system of the HMD large exit pupil diameter, distortion, on the other hand uses a pixel-level visual control penetration rate of the display to adjust the rate of see-through HMD, the greatest degree of meet user demand for respect HMD comfort, clarity, etc., reducing eye fatigue caused by the HMD use, greatly improving the HMD availability.

附图说明 BRIEF DESCRIPTION

[0018] 为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图: [0018] In order to more clearly illustrate the embodiments of the present invention or the technical solution in the prior art, accompanying drawings for describing the embodiments or the prior art described in the introduction required simply Apparently, the description below the drawings are only some embodiments of the present invention embodiments, those of ordinary skill in the art is concerned, without any creative effort, and can obtain other drawings based on these drawings:

[0019] 图1为本实用新型实施例头戴显示装置HMD的一种结构示意图; [0019] FIG. 1 embodiment of the present invention show one embodiment of a schematic structure of wearing the HMD apparatus;

[0020] 图2为本实用新型实施例头戴显示装置中的显示系统的结构示意图;[0021] 图3a为本实用新型实施例头戴显示装置中显示系统的MTF曲线; A schematic structural diagram of a display system apparatus [0020] FIG. 2 embodiment of the present invention, head mounted display; [0021] FIG. 3a embodiment of the present invention, head mounted display system MTF curve display device;

[0022] 图3b为本实用新型实施例头戴显示装置中显示系统的畸变曲线; [0022] FIG. 3b embodiment of the present invention, head mounted display system distortion curve display device;

[0023] 图4为本实用新型实施例头戴显示装置中控制系统的结构示意图; System configuration diagram of the control apparatus [0023] FIG. 4 embodiment of the present invention, head mounted display;

[0024] 图5为本实用新型实施例头戴显示装置调节视透率的方法流程示意图; [0024] FIG. 5 embodiment of the present invention, head mounted display device is adjusted depending on the penetration rate flowchart of a method;

[0025] 图6a为本实用新型实施例在环境光较弱时,强调节视透率的效果示意图; [0025] FIG. 6a novel embodiment at low ambient light, emphasize a schematic section view of the effect of the present practical penetration rate;

[0026] 图6b为本实用新型实施例在环境光较强时,强调节视透率的效果示意图; [0026] FIG. 6b novel embodiments ambient light is strong, a schematic section view emphasizes the effect of the present practical penetration rate;

[0027] 图7a为本实用新型实施例CGI显示器区域示意图; [0027] Figure 7a schematic view of the present display area of ​​the new CGI practical embodiment;

[0028] 图7b为本实用新型实施例根据图5a的CGI显示器区域调节视透率的效果示意图; [0028] FIG. 7b novel schematic view of an embodiment of the penetration rate according to the effect adjustment area of ​​the display of FIG. 5a CGI utilities of the present;

[0029] 图8a为本实用新型实施例AR显示区域示意图; [0029] Figure 8a is a schematic diagram display region AR new practical embodiment;

[0030] 图8b为本实用新型实施例根据图6a中的AR显示区域调节视透率的效果示意图; [0030] FIG. 8b a schematic embodiment of the present invention according to FIG. 6a AR display area see-through rate adjustment effects;

[0031] 图中标记:1-微型图像显不器,2-曲面棱镜第一表面,3-曲面棱镜第二表面,4-曲面棱镜第三表面,5-补偿棱镜的第一表面,6-补偿棱镜的第一表面,7-像素级视透率可调显示屏,10-镜架,20-显示系统。 [0031] FIG labeled: 1- miniature image display is not, a first curved surface prism 2-, 3- curved second prism surface, the third curved surface prism 4-, 5- a first surface of the compensating prism, 6- a first surface of the compensating prism 7-pixel level adjustable see-through display rate, 10 frames, the display system 20.

具体实施方式 Detailed ways

[0032] 下面将结合本实用新型实施例中的附图,对本实用新型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实用新型一部分实施例,而不是全部的实施例。 [0032] below with reference to the present invention, the embodiment of the drawings, the present invention embodiment of the technical solution will be clearly and completely described, obviously, the described embodiments are merely embodiments of the present invention a part, rather than all embodiments. 基于本实用新型中的实施例,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,都属于本实用新型保护的范围。 Based on the present invention in embodiments, those of ordinary skill in the art to make all other embodiments without creative work obtained, are within the scope of protection of the present invention.

[0033] 本实用新型实施例所述的HMD可以为单目HMD,也可以为双目HMD,当为单目时,只有一组显示系统,双目则有两组显示系统。 [0033] Example embodiment of the present invention, the HMD can be monocular HMD, may be a binocular HMD, as is monocular, only one set of the display system, there are two binocular display system. 本实用新型实施例中所述的视透率就是透射率,视透率高的话,反射率就低。 Embodiment of the present invention the apparent transmittance is permeabilities, see-through rate is high, the reflectivity is low.

[0034] 参见图1,为本实用新型实施例头戴显示装置HMD的一种结构示意图,包括镜架 [0034] Referring to Figure 1, a schematic view of one kind of novel embodiment of the headgear structure of a display device of the present utility HMD, including frames

10、显示系统20和控制系统(控制系统在图1中未示出),图1示意的为双目HMD,即有两组完全相同的显示系统,每组显示系统的结构示意图可参见图2,包括微型图像显示器1、曲面棱镜、补偿棱镜和像素级视透率可调显示屏7。 10, the display system 20 and a control system (control system, not shown in FIG. 1), FIG. 1 is a schematic of the eyes of the HMD, i.e. there are two sets of identical display system, each schematic view showing a system can be seen in FIG. 2 , including micro image display 1, the prism surface, compensating prism and the pixel level of see-through display 7 is adjustable. 图2中,8为出瞳,即人眼位置;所述曲面棱镜为具有三个光学表面的自由曲面棱镜,从像源到观察者方向,依次为第一表面2,第二表面3,第三表面4,其中第三表面4镀有半反半透膜;所述补偿棱镜包括两个光学表面,分别为光学表面5和6,5亦称为补偿棱镜的第一表面,6亦称为补偿棱镜的第二表面,补偿棱镜的第一表面5和第二表面6分别与曲面棱镜的第二表面3、第三表面4的面型相同(即面5与面3面型相同,面6与面4面型相同)。 In FIG. 2, 8 to the exit pupil, i.e. the position of the human eye; the free curved surface prism is a prism having three optical surfaces, to the direction of the viewer from an image source, followed by 2 a first surface, a second surface 3, three surface 4, wherein the third surface 4 coated with transflective film; said compensating prism comprises two optical surfaces, optical surfaces are also referred to as 6,5 and 5 a first surface of the compensating prism, also known as 6 a second compensating prism surface, the second surface of the first compensating prism surface and a second surface 5 and 6 respectively, the prism surface 3, the third surface of the face 4 of the same type (i.e., the third surface and the plane surface 5 of the same type, surface 6 4 the same plane surface type). 从观察者侧看,补偿棱镜位于曲面棱镜外侧,补偿棱镜与曲面棱镜光学胶合;像素级视透率可调显示屏7位于补偿棱镜外侧,用于控制外界场景光线射入人眼的比例;微型图像显示器I位于曲面棱镜第一表面2的外侧,用于显示计算机生成图像CGI图像。 From the viewer side, compensating prism located outside the prism surface, the optical compensating prism and the prism cemented surface; pixel level of see-through display screen adjustable rate proportional compensating prism located outside, for controlling the ambient scene light into the human eye 7; Micro I the first surface of the image display surface 2 of the outside of the prism, for displaying computer generated images CGI image. 图2显示系统的实际光路分为两路,分别为:1)微型图像显示器I发出的光线先经过曲面棱镜的第一表面2透射进入曲面棱镜,然后在第二表面3的内侧发生全反射,再经第三表面4反射,最后再次经过第二表面3透射进入人眼;2)外界场景光线首先经过像素级视透率可调显示屏7透射,然后经补偿棱镜第二表面6透射进入补偿镜,然后经过补偿棱镜第一表面5、曲面棱镜的第三表面4和第二表面3进入人眼。 2 shows an actual optical path system of FIG divided into two, namely: 1) I miniature visual image display light emitted from the first prism through the first surface of the curved surface 2 transmitted into the prism, and then is totally reflected inside the second surface 3, 4 and then by the third reflection surface, and finally again passing through the second transmitting surface 3 into the eye; 2) ambient scene light first passes through the pixel-level view of the adjustable transmissive display 7, and then through the second surface of transmitted into compensation compensating prism 6 mirror, then passes through a first compensating prism surface 5, the third curved surface and a second surface 4 of the prism 3 into the eye. [0035] 本实用新型实施例中,曲面棱镜的三个光学表面的面型满足以下条件方程: [0035] The embodiment of the present invention, the surface of the curved type three optical surfaces of the prism satisfy the following conditional equation:

Figure CN203433192UD00071

[0037] 其中C为曲面曲率半径,Cj为多项式系数,设计时,合理选择多项式,将自由曲面控制成平面对称曲面。 [0037] where C is a curvature radius of a curved surface, Cj of polynomial coefficients, designing, selecting polynomial, the free curved surface is controlled to a plane of symmetry.

[0038] 优选的,本实用新型的实施例中的光学系统设计为以下的光学特性:微型图像显不器I的对角线长度为0.61英寸,分辨率为800*600 ;光学系统设计为成像于无穷远时对角视场为52度,出瞳距为22mm,及曲面棱镜出射表面(图2中面3)到出瞳8之间的直线距离为22_,出瞳直径为8_,微型显示器I与曲面棱镜之间的直线距离为5_。 [0038] Preferably, the optical system of the present invention embodiment designed for the following optical characteristics: a diagonal length of miniature image display is not I is 0.61 inches, with a resolution of 800 * 600; an imaging optical system is designed to to infinity diagonal field of view of 52 degrees, the interpupillary distance is 22mm, and the exit surface of the prism surface (surface 3 in FIG. 2) to a linear distance between the exit pupil 8 to a 22, a pupil diameter of 8_, microdisplays I and the linear distance between the surface of the prism 5_. 按此方案,本实施例中的中心视场传递函数值在301p/mm处大于0.3,边缘视场在301p/mm处大于0.1,MTF曲线如附图3a所示,畸变曲线如附图3b所示。 Click embodiment, the present embodiment the transfer function of the value of the central field of view is greater than 0.3 in the embodiment 301p / mm, the fringe field of view is greater than 0.1 at 301p / mm at the MTF curve as shown in figures 3a, 3b, as indicated by reference distortion plot shows.

[0039] 本实用新型实施例中,所述像素级视透率可调显示屏7可以为透明单色IXD显示屏、透明单色OLED显示屏等现有或未来可能出现的任一种以像素为单位控制屏幕显示的显示屏。 [0039] Example embodiment of the present invention, through the pixel-level view of the display 7 may display tunable monochromatic IXD transparent, clear monochrome OLED display of any other existing or future potential to a pixel the unit control display screen. 所述微型图像显示器I可以为IXD显示屏,也可以为OLED显示屏、LCoS (LiquidCrystal on Silicon,娃基液晶)显示屏等常用微型显示屏。 The miniature visual image display IXD I may display, an OLED display may be, LCoS (LiquidCrystal on Silicon, baby yl LCD) display and the like commonly microdisplays.

[0040] LCD显示屏(Liquid Crystal Display,液晶显示屏),液晶这一呈液体状的化学物质,与磁场中的金属一样,当受到外界电场影响时,其分子会产生精确的有序排列。 [0040] LCD display (Liquid Crystal Display, LCD screen), the liquid chemical substance in liquid form, as metal with a magnetic field, when subjected to external electric field, molecules which will have precise orderly. 如果对分子的排列加以适当的控制,液晶分子即可控制光线的透射率。 Be properly controlled if the arrangement of molecules, the liquid crystal molecules to control the transmittance of light. LCD显示屏中,液晶的水晶液滴都被包含在细小的单元格结构中,一个或多个单元格构成屏幕上的一个像素。 LCD display, a crystal of the liquid crystal droplets are included in the small cell structure, one or more cells constitute a pixel on the screen. 当LCD中的电极产生电场时,液晶分子就会产生扭曲,从而将穿越其中的光线进行有规则的折射,实现视透率的控制。 When the LCD electrodes generate an electric field, liquid crystal molecules will be twisted, so that the light which is performed through the regular refraction, to achieve see-through rate control. 由于LCD显示屏每个像素都能被单独控制,因此本实用新型可采用单色透明IXD控制视透率,来实现像素级视透率的控制。 Since the LCD monitor can be individually controlled for each pixel, therefore the present invention may employ a monochromatic IXD transparent see-through rate control, to achieve control of the rate of penetration depends on the pixel level. 而OLED显示屏(OrganicLight-Emitting Diode,有机电激光显示)可以以像素点为单位,调节各像素的灰度值,灰度值越大,视透率越低。 The OLED display (OrganicLight-Emitting Diode, organic laser shown) may be in units of pixels, adjusting the gradation value of each pixel, the greater the gradation value, the lower the rate of see-through.

[0041] 参见图4,为本实用新型实施例头戴显示装置中控制系统的结构示意图,所述控制系统包括存储模块、控制处理器、显示模块电路和外围电路。 [0041] Referring to Figure 4, a schematic structure of a control system of the new apparatus head mounted display of the present practical embodiment, the control system includes a storage module, the control processor, a display module circuit and peripheral circuits. 存储模块为系统存储,里面存储了整个HMD的控制程序和数据;控制处理器相当于电脑CPU,各种数据处理工作都在此模块完成;显示模块电路包括图形处理器,图形处理器通过2个视频输出接口输出两路视频信号,一路为微型图像显示器提供CGI图像,另一路为像素级视透率可调显示屏提供用于控制视透率的图像信号;外围电路包括外部通信接口,用于与头戴显示装置进行交互,所述外部通信接口包括W1-F1、蓝牙、GPS、GPRS, USB中的一种或多种。 The storage module is a storage system, which stores a control program and the whole HMD transactions; equivalent control processor computer CPU, various data processing is done in this module; display module circuit include a graphics processor, a graphics processor by 2 video output two video signals, as a way to provide CGI image miniature visual image display, another see-through path for the pixel level of the display image signal is adjustable for controlling the see-through rate; peripheral circuit comprises an external communication interface for head-mounted display device to interact with the external communication interface comprises a W1-F1, Bluetooth, GPS, GPRS, USB one or more.

[0042] 本实用新型实施例可以根据以下一个或多个条件对HMD的视透率进行调节: [0042] Example embodiment of the present invention may be adjusted depending on the penetration rate of the HMD according to one or more of the following conditions:

[0043] I) HMD的使用环境光强;[0044] 2)计算机生成图像CGI的显示区域; [0043] I) HMD using ambient light intensity; [0044] 2) CGI computer-generated image of the display region;

[0045] 3)增强现实AR技术中,需要重点增强的区域。 [0045] 3) AR augmented reality technology, it is important to enhance the area.

[0046] 要实现用环境光强控制视透率,则需要在本实用新型实施例头戴现实装置表面安装用于感知环境光强的感光装置(光敏传感器),感光装置将光强信息提交给控制处理器,控制处理器对当前的光强信息进行处理后,将控制指令传送给图形控制器,图形处理器根据光强信息对像素级视透率可调显示屏的整个区域进行视透率调节。 [0046] To achieve control with ambient light intensity depending on the penetration rate, it is necessary in the present invention embodiment reality headgear mounting surface means for sensing the light intensity in the photosensitive device (photosensor), the light receiving means to the light intensity information submitted after the control processor, the control processor of the current light intensity information is processed, the control command transmitted to the graphic controller, a graphics processor in accordance with light intensity information of the entire area of ​​the display be adjustable depending on the penetration rate depends on the pixel level penetration rate regulation. 在本实用新型实施例中,在HMD的控制系统中需要预先设置光强与视透率的映射关系,映射关系为环境光强越强,视透率越低,具体值在此不做限定,根据需求可任意设定。 In the embodiment of the present invention, the control system of the HMD need to pre-set mapping relationship between light intensity and penetration rate depends on the mapping relationship between ambient light intensity is stronger, the lower the see-through rate, the value of which is not limited particularly, The requirements can be arbitrarily set. 如图6a,为本实用新型实施在环境光较弱时,强调节视透率的效果示意图,当环境光较弱时,需要提高像素级视透率可调显示屏的视透率,以提高微显屏的CGI显示效果;图6b为本实用新型实施例在环境光较强时,强调节视透率的效果示意图,当环境光较强时,可适当降低像素级视透率可调显示屏的视透率,以提高微显屏的CGI显示效果。 Figure 6a, the novel embodiments when ambient light is weak, stressed schematic section view of rate of penetration effect, when the ambient light is weak, it is necessary to improve the penetration rate depends on the pixel level adjustable see-through display of the present practical to improve CGI microdisplay panel display; Figure 6b novel embodiment of the disclosure when ambient light is strong, a schematic section view through emphasis of the effect, when the ambient light is strong, can be appropriate to reduce the penetration rate is adjustable depending on the pixel level display screen view permeabilities, in order to improve a CGI microdisplay panel display.

[0047] 由于在实际应用过程中,CGI图像并不一定会占满整个显示屏,有时候CGI图像会只占据一小部分显示屏,如图7a,因此,为了提高显示效果,需要降低像素级视透率可调显示屏上与CGI图像所重合的显示区域的视透率。 [0047] Since the actual application process, not necessarily CGI image occupies the entire screen, the image is sometimes CGI occupy only a small portion of the display shown in Figure 7a, and therefore, in order to improve the display effect, it is necessary to reduce the pixel level see-through view of an adjustable penetration rate display region overlaps with the CGI image on the display. 实现方式为:图形处理器根据检测到的微型图像显示器的被点亮区域,调节像素级视透率可调显示屏所对应区域的视透率,如图7a展示的为CGI图像在微型图像显示器上所占区域,图7b展示的为像素级视透率可调显示屏上对应区域视透率降低的示意图。 Implementation are: the graphic processor according to the detected illuminated region of the miniature visual image display, pixel-level adjustment see-through view of an adjustable penetration rate corresponding to the display area, as illustrated in Figure 7a CGI miniature visual image display in the image the area occupied, Figure 7b shows the pixel level is a schematic see-through area of ​​reduced penetration rate depends on the display screen corresponding adjustable.

[0048] HMD应用中,最值得期待的是增强现实AR技术,即将虚拟信息叠加到真实场景中,在增强现实应用场景下,为突出增强现实所显示的信息,可将与其相关的区域的视透率降低。 [0048] HMD applications, the most anticipated is the Augmented Reality AR technology, the upcoming virtual information superimposed onto the real scene, in the augmented reality application scenarios, to highlight the enhanced information reality shows, can be depending on the associated region penetration rate. 实现方式为:图形处理器根据从应用程序里提取出的虚拟信息在微型图像显示器上的呈现区域信息,调节像素级视透率可调显示屏所对应区域的视透率。 Implementation are: The virtual graphics processor presents information extracted from the application in miniature visual image display on the area information, see-through level adjustment pixel see-through rate adjustable rate corresponding to the display area. 参见图8a,图8a展示的为微型图像显示器上的呈现的虚拟信息,图8b展示的为像素级视透率可调显示屏上虚拟信息对应区域视透率降低的示意图。 Referring to Figure 8a, Figure 8a shows a virtual presentation of information on the miniature visual image display, a schematic view of the virtual area corresponding to the information on the display reduction rate through FIG. 8b shows the pixel level is adjustable depending on the penetration rate.

[0049] 上述调节视透率的三种方法可以分开使用,也可以结合使用,参见图5,为上述三种方法结合使用的实施例。 Three methods [0049] The see-through rate adjustment can be used separately, or can be combined, see Figure 5, in conjunction with the above-described embodiment uses three methods. HMD控制系统在接收到光敏传感器发送来的环境光强信号后,判断环境光强是否发生变化,若环境光强发送变化,则根据系统内存储的环境光强与视透率的对应关系调节像素级视透率可调显示屏整个屏幕区域的视透率(如图6a、6b),若无变化则继续检测环境光强是否发生变化。 After HMD control system sent receiving photosensor ambient light intensity signal, determines the ambient light intensity whether a change occurs, if the ambient light intensity change in the transmission, the adjustment pixels in accordance with the correspondence between the system ambient light intensity depending on the penetration rate of the stored level see-through view of an adjustable penetration rate display entire screen area (FIG. 6a, 6b), continues to detect the absence of changes in the ambient light has changed. 在整个屏幕的视透率根据光强信号调节好后,检测微型图像显示器是否显示CGI图像,若是,则根据CGI所在区域,在像素级视透率可调显示屏上调节对应区域的视透率(如图7a、7b),该视透率是在整个屏幕视透率的基础上进一步降低视透率。 In see-through rate of the entire screen according to the light intensity signal after a good adjustment, detecting whether CGI miniature visual image display the image, and if yes, according to the region where the CGI, adjustable at the pixel level view of see-through rate through adjustment of the corresponding area on the display screen (FIG. 7a, 7b), depending on the penetration rate is further lowered see-through view of the entire screen on the basis of the penetration rate. CGI所在区域视透率调节后,检测CGI图像中是否有增强现实信息,若有,则调节AR区域的视透率(如图8a、8b),该视透率是在CGI区域视透率的基础上进一步降低视透率。 CGI rear view Area penetration rate adjustment, detect whether there is an augmented reality image CGI information, if any, penetration rate is adjusted depending on the region AR (FIG. 8a, 8b), which is in the see-through rate of the see-through region CGI to further reduce the rate of see-through basis.

[0050] 上述方法描述的均为自适应调节视透率方法,用户还可以通过语音或手势指令,直接对视透率的开关、视透比例、以及区域进行手动控制,以满足用户在各种环境下的需要。 [0050] are adaptive method depending on the penetration rate, the user can directly switch on the see-through rates, depending on the ratio of permeability, and the area of ​​the methods described by voice or gesture commands manual control, in order to meet various user required under the circumstances. 实现方式为:图形处理器根据用户语音、手势、触摸指令等方式,调节像素级视透率可调显示屏所对应区域的视透率。 Implementation are: the graphic processor according to the user's voice, gestures, the touch command, etc., depending on the penetration rate adjustment pixel level adjustable see-through display of the corresponding area.

[0051] 本实用新型实施例的HMD,一方面采用三个光学表面的自由曲面棱镜结合补偿棱镜,使得整个HMD的光学系统出瞳直径大,畸变小;另一方面采用了一块像素级控制视透率的显示屏来调节HMD的视透率,能最大程度的满足用户对HMD舒适度、清晰度等方面的需求,降低了HMD使用时对眼睛造成的疲劳感,极大的提高了HMD的可用性。 [0051] HMD embodiment of the present invention, on the one hand use of the free-form surface prism in conjunction with the three optical surfaces of the compensating prism, so that the entire optical system of the HMD large exit pupil diameter, distortion is small; on the other hand uses a pixel-level visual control penetration rate of the display to adjust the rate of see-through HMD, the greatest degree of meet user demand for respect HMD comfort, clarity, etc., reducing eye fatigue caused by the HMD use, greatly improving the HMD availability.

[0052] 本说明书中公开的所有特征,或公开的所有方法或过程中的步骤,除了互相排斥的特征和/或步骤以外,均可以以任何方式组合。 All of the features [0052] disclosed in the present specification, or all of the steps of a method or process disclosed, except the mutually exclusive features and / or steps, can be combined in any manner.

[0053] 本说明书(包括任何附加权利要求、摘要和附图)中公开的任一特征,除非特别叙述,均可被其他等效或具有类似目的的替代特征加以替换。 [0053] in this specification (including any accompanying claims, abstract and drawings) disclosed in any of the features, unless specifically described, can be replaced by other equivalent or alternative features having similar purpose. 即,除非特别叙述,每个特征只是一系列等效或类似特征中的一个例子而已。 That is, unless specifically described, each feature is only one example of a series of equivalent or similar features only.

[0054] 本实用新型并不局限于前述的具体实施方式。 [0054] The present invention is not limited to the foregoing specific embodiments. 本实用新型扩展到任何在本说明书中披露的新特征或任何新的组合,以及披露的任一新的方法或过程的步骤或任何新的组 Step invention extends to any novel features disclosed in this specification, or any novel combination, and any disclosure of a new method or process any new group

口ο Mouth ο

Claims (10)

  1. 1.一种头戴显示装置HMD,包括镜架、显示系统和控制系统,其特征在于,所述显示系统包括微型图像显示器、曲面棱镜、补偿棱镜和像素级视透率可调显示屏,所述曲面棱镜为具有三个光学表面的自由曲面棱镜,从观察者侧看,补偿棱镜位于曲面棱镜外侧,且补偿棱镜与曲面棱镜光学胶合;像素级视透率可调显示屏位于补偿棱镜外侧;微型图像显示器用于显示计算机生成图像CGI图像,像素级视透率可调显示屏用于控制外界场景光线射入人眼的比例; 微型图像显示器发出的光线先经过曲面棱镜的第一表面透射进入曲面棱镜,然后在第二表面的内侧发生全反射,再经第三表面反射,最后再次经过第二表面透射进入人眼,所述曲面棱镜的第三表面镀有半反半透膜; 外界场景光线首先经过像素级视透率可调显示屏透射,然后经补偿棱镜第二表面透射进入补 A head-mounted display device of the HMD, comprising a frame, a display system and a control system, characterized in that said display system comprises a miniature image display surface prisms, compensating prism and the penetration rate is adjustable depending on the pixel level display, the He said free curved surface prism is a prism having three optical surfaces, viewed from the viewer's side, compensating prism surface of the prism located outside, and the compensating prism and the optical prism cemented surface; pixel level of see-through display of an adjustable compensating prism located outside; miniature image display for displaying computer generated images CGI image, pixel-level adjustable rate proportional see-through display screen for controlling ambient scene light into a human eye; miniature visual image display light emitted from the first surface through the first curved surface is transmitted into prism prism surface then occurs inside the second surface of the total reflection, and then reflected by the third surface, and finally again passes through the second surface of the transmission into the eye, the curved surface of the third prism is coated with a transflective film; outside scene light first passes through the pixel-level view of an adjustable transmission display, and then through the second compensating prism surface fill transmitted into 偿镜,然后经过补偿棱镜第一表面、曲面棱镜的第三表面和第二表面进入人眼。 Compensation mirror, then passes through the first compensating prism surface, the second surface of the curved surface and the third prism into the eye.
  2. 2.如权利要求1所述的头戴显示装置HMD,其特征在于,补偿棱镜的第一表面和第二表面的面型分别与曲面棱镜的第二表面、第三表面的面型相同。 2. A head mount display according to claim 1 of the HMD device, wherein a first surface and a compensating prism side surface of the second type, respectively, the second surface of the prism surface, the same surface of the third surface.
  3. 3.如权利要求2所述的头戴显示装置HMD,其特征在于,曲面棱镜的三个光学表面的面型满足以下条件方程: 3. The headgear according to claim 2 of the HMD display device, characterized in that the surface of the curved type three optical surfaces of the prism satisfy the following conditional equation:
    Figure CN203433192UC00021
    其中C为曲面曲率半径,Cj为多项式系数。 Where C is a curvature radius of a curved surface, Cj polynomial coefficients.
  4. 4.如权利要求1至3中任一项所述的头戴显示装置HMD,其特征在于,所述控制系统包括存储模块、控制处理器、显示模块电路和外围电路,其中: 显示模块电路包括图形处理器,图形处理器输出两路视频信号,一路为微型图像显示器提供CGI图像,另一路为像素级视透率可调显示屏提供用于控制视透率的图像信号; 外围电路包括外部通信接口,用于与头戴显示装置进行交互,所述外部通信接口包括W1-F1、蓝牙、GPS、GPRS、USB中的一种或多种。 4. A headset according to any one of claims 1 to 3, wherein the display device of the HMD, wherein said control system includes a storage module, the control processor, a display module circuit and a peripheral circuit, wherein: the display module comprises a circuit a graphics processor, a graphics processor output two video signals, as a way to provide CGI image miniature visual image display, another see-through path for the pixel level of the display image signal is adjustable for controlling the see-through rate; peripheral circuit comprises an external communication interface for interacting with a head-mounted display device, the external communication interface comprises W1-F1, Bluetooth, GPS, GPRS, USB one or more.
  5. 5.如权利要求4所述的头戴显示装置HMD,其特征在于,所述HMD还包括用于感知环境光强的感光装置,感光装置将光强信息经控制处理器发送给图形处理器,图形处理器根据光强信息对像素级视透率可调显示屏的整个区域进行视透率调节,在所述控制系统中预先设置有光强与视透率的映射关系。 5. The headgear as claimed in claim 4, wherein the display device of HMD, wherein said further comprises HMD for sensing light intensity in the light receiving means, light receiving means transmits light intensity information to the graphic processor via the control processor, graphics processor see-through rate adjusted according to the light intensity information of the entire area of ​​the display pixel level adjustable see-through rate, and optical intensity mapping between the see-through rate in the control system in advance.
  6. 6.如权利要求4所述的头戴显示装置HMD,其特征在于,图形处理器根据检测到的微型图像显示器的被点亮区域,调节像素级视透率可调显示屏所对应区域的视透率。 6. The headgear as claimed in claim 4, wherein the display device of the HMD, wherein the graphics processor in accordance with the detected illuminated region of the miniature image display, depending on penetration rate adjustment pixel level corresponding to the display area is adjustable depending penetration rate.
  7. 7.如权利要求4所述的头戴显示装置HMD,其特征在于,图形处理器根据从应用程序里提取出的虚拟信息在微型图像显示器上的呈现区域信息,调节像素级视透率可调显示屏所对应区域的视透率。 7. The headgear as claimed in claim 4, wherein the display device of the HMD, wherein the virtual graphics processor presents information extracted from the application in miniature visual image display on the area information, depending on the penetration rate adjustment pixel level adjustable the see-through display of a corresponding region.
  8. 8.如权利要求4所述的头戴显示装置HMD,其特征在于,图形处理器根据用户语音、手势、触摸指令中的一种或多种,调节像素级视透率可调显示屏所对应区域的视透率。 8. The headgear as claimed in claim 4, wherein the display device of the HMD, characterized in that, the graphic processor according to the user's voice, gestures, the touch of one or more instructions, see-through level adjustment pixel display corresponding adjustable rate see-through rate region.
  9. 9.如权利要求1至3中任一项所述的头戴显示装置HMD,其特征在于,所述像素级视透率可调显示屏为透明单色IXD显示屏或透明单色OLED显示屏。 9. A headset according to any one of claims 1 to 3 of the HMD display device, wherein the pixel-level view of an adjustable lens is a transparent display or a monochrome display IXD transparent monochrome OLED display .
  10. 10.如权利要求1至3中任一项所述的头戴显示装置HMD,其特征在于,所述微型图像显示器为IXD显示屏、O LED显示屏、LCoS显示屏中的一种。 10. The headgear according to any one of claims 1 to 3, wherein the display device of the HMD, characterized in that the miniature visual image display is a display IXD, O LED display, one of the LCoS display.
CN 201320446198 2013-07-18 2013-07-25 Head mounted display HMD CN203433192U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103439793A (en) * 2013-07-18 2013-12-11 成都理想境界科技有限公司 Hmd
CN104391379A (en) * 2014-11-26 2015-03-04 北京锐视科技有限公司 Virtual reality stereoscopic display
CN105094304A (en) * 2014-05-20 2015-11-25 联想(北京)有限公司 Information processing method and electronic device
CN105242400A (en) * 2015-07-10 2016-01-13 上海鹰为智能科技有限公司 Virtual reality glasses

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103439793A (en) * 2013-07-18 2013-12-11 成都理想境界科技有限公司 Hmd
CN103439793B (en) * 2013-07-18 2016-05-25 成都理想境界科技有限公司 A headset for display device hmd
CN105094304B (en) * 2014-05-20 2018-08-10 联想(北京)有限公司 Information processing method, and an electronic device
CN105094304A (en) * 2014-05-20 2015-11-25 联想(北京)有限公司 Information processing method and electronic device
CN104391379B (en) * 2014-11-26 2016-09-21 北京菠萝米科技有限公司 A kind of virtual reality stereoscopic display
CN104391379A (en) * 2014-11-26 2015-03-04 北京锐视科技有限公司 Virtual reality stereoscopic display
CN105242400A (en) * 2015-07-10 2016-01-13 上海鹰为智能科技有限公司 Virtual reality glasses
CN105242400B (en) * 2015-07-10 2017-12-29 上海鹰为智能科技有限公司 Virtual reality glasses

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