CN100367074C - Spectacle type display device - Google Patents
Spectacle type display device Download PDFInfo
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- CN100367074C CN100367074C CNB2003101119645A CN200310111964A CN100367074C CN 100367074 C CN100367074 C CN 100367074C CN B2003101119645 A CNB2003101119645 A CN B2003101119645A CN 200310111964 A CN200310111964 A CN 200310111964A CN 100367074 C CN100367074 C CN 100367074C
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Abstract
The present invention relates to a glasses type display comprising a micro display chip made of OLED materials, an optical prism, a control circuit of a display and the like, wherein image light rays emitted by a micro display pass through a transmission surface to be introduced into the optical prism, and the control circuit of a display offers various required logic control signals to the micro display chip. For the micro display chip, the visual angle can reach 120 DEG, and the frame refreshing rate can be as high as 120 hertz; therefore, not only visual effects of a large screen but also stereoscopic vision effects can be generated. The glasses type display uses a VGA interface compatible with the VESA standard so that the display can be connected to any video device with a VGA interface. The display also has the focusing function so that the display can be used by myopic people. The second curved surface and the third curved surface of the optical prism are spherical surfaces so that a design method and a manufacturing method are simple and feasible.
Description
Technical field
The present invention relates to display, be specifically related to a kind of glasses type displayer.
Background technology
Good glasses type displayer has little, thin, light geometry external form, sharp keen image, the wide ken, big pupil and the virtual image with depth of field,
The eye-Treck product of OLYMPUS company adopts TFT micro-display chip, but because TFT micro-display chip produces transmitted light by the device that makes backlight, and its visual field has only 20 degree, so the patent US.6 of Kodak, 522,474 (Cobb; Joshua M.et al) think that because the ken is little, the eye-Treck product of OLYMPUS company is not suitable for doing three-dimensional 3D rendering and shows, and has proposed a kind of big ken scheme of using spherical light.But this scheme requires bigger space, can only use in helmet-mounted display.
For this reason, US.6,034,717 (Dentinger et al.) and US.4,021,846 (Roese) provides a kind of eyes electronic shutter method to obtain the stereoscopic vision frame, yet, eyes electronic shutter method is except optical system complexity, the additional filter of needs, the software processing method of acquisition stereoscopic vision is more complicated also, and for example, eyes electronic shutter method need be controlled two micro-displays respectively, two micro-displays use different data stream, and this has just increased cost widely.
Optical prism is the key of eyes formula display, is made of three curved surface parameters non-round surface that has nothing in common with each other usually, adopts the United States Patent (USP) of non-round surface prism that US.6 is arranged, 028,708 (Takahashi); US.6,097,354 (Takahashi et al); US.5,436,765 (Togino); US.5,959,780 (Togino etal); The US.6 of OLYMPUS company, 317,267 (Takahashi; Koichi) and adopt aspheric mirror wear micro-display HMD patent US.5,596,433 (Konuma) also have night vision goggles video engine patent US.6,565,029B1.The curved surface parameter of different non-round surface prisms is all disclosed in the middle of these patents.Wherein OLYMPUS company has the eye-Treck HMD launch of this technology of employing, and eye-Treck HMD declares that its ken is that level is less than 40 degree, vertically less than 22 degree.But all do not relating to the focal length adjustment in above product, the patent.In general increasing the focal length adjusting mechanism among the micro-display HMD wearing of the compactness that adopts non-round surface prism not only exists the risk that influences optical effect but also can increase size and the volume of wearing micro-display.
Adopt the U.S. Pat .4 of very complicated optical system, 563,061, relate to focus adjusting mechanism, however this technology can not on glasses type displayer, use because tens optical mirror slips are too complicated and heavy.
The whole world has 60% people to need wears glasses just can watch things, and requiring these people to wear two pairs of glasses simultaneously could watch, and this is very unpractical.Therefore, the focus adjusting mechanism of glasses is related to the comfort of the user more than 60%, should this be the essential personalized requirement of satisfying.
In addition, the patent of the non-round surface prism of above-mentioned employing has all been emphasized the parameter of three non-round surfaces.The patent that has has also adopted three free form surfaces to come the compensating images distortion.The design and the manufacturing of non-round surface acquire a certain degree of difficulty, when the design of three non-round surfaces that relate to the space with make that this is just more difficult, and three free form surfaces difficulty more.
The object of the present invention is to provide a kind of glasses type displayer, power consumption is little and can produce the more visual effect of giant-screen.
Another object of the present invention is to provide a kind of glasses type displayer, can utilize the binocular single vision principle to produce stereoscopic visual effect.
A further object of the present invention is to provide a kind of glasses type displayer, can be connected to the video equipment of any VGA of having interface.
A further object of the present invention is to provide a kind of glasses type displayer, can produce high picture quality.
A further object of the present invention is to provide a kind of glasses type displayer, has the focusing function, can use for the people of myopia.
An also purpose of the present invention is to provide a kind of glasses type displayer, the design of its optical prism and manufacture method simple possible.
Summary of the invention
For the present invention that achieves the above object has adopted following technical scheme: a kind of glasses type displayer is provided, form by micro-display chip, optical prism, display control circuit, the micro-display chip that described micro-display chip is the OLED material, the image light that the micro-display chip sends imports described optical prism by transmission plane, first curved surface in three curved surfaces of described optical prism is a transmission plane, it is facing to the micro-display luminescent device, and the image light that micro-display sends imports optical prism by this face; Second curved surface in three curved surfaces of optical prism is the reflection transmission plane, its reflection imports the light of optical prism, forms the first reflection of prism, the reflection ray directive of first reflection the 3rd curved surface on the other side, be reflecting surface, form the reflection second time of optical prism; Described reflecting surface is a minute surface, it will be from second curved surface, and the light that promptly reflects transmission plane reflexes to second curved surface again and the logic control signal of various needs is provided for the micro-display chip by the described display control circuit of retina that second curved surface passes to the user.
In glasses type displayer of the present invention, described OLED micro-display chip uses two identical micro-display chips, cooperates two identical optical prisms, constitutes glasses type displayer for binocular and usefulness; Described glasses type displayer comprises all circuit such as the RGB sequential control, 3D control, focal length adjustment, image guide sound sound control system of two micro-display chips, VGA interface, VGA; Described micro-display chip circuit inside has ranks register and ranks driver to be used to drive the OLED light emitting diode matrix of 852 * 600 dot matrix; Described micro-display chip internal is integrated RGB reservoir, RGB sequential control circuit and control logic circuit; A PWM sequence control circuit is arranged, be used to control on average lighting the time of each pixel, thereby realize control brightness.Described control circuit board is made up of microprocessor and image control circuit and VGA interface, microprocessor and image control circuit be for the micro-display chip provides logic control signal, comprise frame synchronization, row synchronously, pixel effectively, brilliance control, look-at-me, enable signal, colour saturation control and scan mode, picture position, the three-dimensional frame gating signal of 3D.
In glasses type displayer of the present invention, the inclination angle between the light-emitting area of described micro-display chip and the transmission plane of optical prism, two faces is spent between 36 degree 28.
In glasses type displayer of the present invention, the inclination angle between the light-emitting area of described micro-display chip and the transmission plane of optical prism, two faces is 32 degree; Designed distance between the light-emitting area of described micro-display chip and the transmission plane of optical prism is the 2-3 millimeter; The refractive index Nd of the material of described optical prism greater than 1 less than 1.6.
In glasses type displayer of the present invention, the refractive index Nd=1.25 of described optical prism material; Described first surface adopts free form surface, and described second curved surface and the 3rd curved surface are spheres.
In glasses type displayer of the present invention, between the light-emitting area of described micro-display chip and the transmission plane of optical prism, two faces under the constant condition in inclination angle, one of them face of translation, be equivalent to the adjustment of the imaging focal length of image, maximum adjustment amount is not more than 3 millimeters.
Because to have adopted technique scheme, micro-display chip is the micro-display chip of OLED material, its field angle can reach 120 degree, and the frame refresh rate can be up to 120 hertz, can produce stereoscopic visual effect when producing the visual effect of giant-screen more.Because the present invention adopts the VGA interface of compatible VESA standard, so it can be connected to the video equipment of any VGA of having interface.The present invention has the focusing function, can use for the people of myopia.Second curved surface of the present invention and the 3rd curved surface are sphere, make design and manufacture method simple possible.
Description of drawings
Fig. 1 is the external structure synoptic diagram of glasses type displayer of the present invention;
Fig. 2 is the inner structure synoptic diagram of glasses type displayer of the present invention;
Fig. 3 is the circuit block diagram of glasses type displayer of the present invention;
Fig. 4 is that the light of glasses type displayer of the present invention moves towards synoptic diagram;
Fig. 5 is that the focal length of glasses type displayer of the present invention is adjusted synoptic diagram.
Embodiment
Below in conjunction with drawings and Examples invention is elaborated.
Fig. 1 to Fig. 5 shows the glasses type displayer in a preferred embodiment of the invention.
To shown in Figure 2, glasses type displayer of the present invention is made up of micro-display chip 1, optical prism 2, focal length adjusting mechanism 3, display control circuit 4, VGA interface 5 and eyeglasses body 6 etc. as Fig. 1.Micro-display chip 1 is the micro-display chip of OLED material, belongs to the device of active illuminating, and its field angle is bigger than the field angle of TFT micro-display chip, can reach 120 degree, and this just provides possibility for the bigger virtual visual pattern of design.The frame refresh rate of OLED micro-display chip 1 can be up to 120 hertz, so it provides convenience for realizing the 3D visual pattern in addition.Because the present invention adopts OLED micro-display chip 1, and OLED micro-display chip 1 field angle own can reach 120 degree, therefore adopts broadening prism dimensions and form, promptly produces the more visual effect of giant-screen.A visual effect the most tangible is reflected in when user's wink to be seen a screen in the glasses and feels effect screen, when the user opens eyes suddenly, can feel immediately that screen size has at the moment increased more than 1/3rd than the simple eye screen picture of seeing.This is the positive effect that the present invention utilizes the binocular single vision principle, utilizes the binocular single vision principle can produce stereoscopic visual effect equally.
The present invention uses 1, two identical optical prism 2 of two identical OLED micro-display chips, constitutes glasses type displayer for binocular and usefulness.Because the response time of OLED micro-display chip 1 is fast, its frame refresh rate is very high.There is the capacitive character waiting time in each pixel and can controls accurately by a low refresh rate frame signal, and the frame signal of this low refresh rate is the stereoscopic vision frame.Based on the method for inserting the stereoscopic vision frame, utilize the binocular single vision principle to produce stereoscopic visual effect.
In the present invention, two micro-displays 1 use identical data stream, and it is to increase a signal gating line on each display, remove to support the VGA signal from image player or PC.The user can use Nvidia GeForce image series adapter to watch 3D rendering (see the WWW.nvidia.com website for details, and download support software) on PC.When non-3D showed, the unsettled or ground connection of this signal gating line all could.The present invention is assigned to this signal gating line on any one empty pin of VESA hardware interface of standard, and this is just compatible physically VESA hardware interface standard (VESA hardware interface standard can find on the www.vesa.com website).
Fig. 3 shows the circuit block diagram of glasses type displayer of the present invention, they RGB sequential control, 3D control, focal length adjustment, image guide sound sound control system etc. that comprise micro-display chip, VGA interface, VGA are circuit all, the total power consumption of these circuit is not more than 5 volts 200 milliamperes, the volume of glasses type displayer is not more than 140 * 50 * 32mm, weight is not more than 150 grams, and it is particularly suitable for Wearable and uses.Micro-display chip circuit inside has ranks register and ranks driver to be used to drive the OLED light emitting diode matrix of 852 * 600 dot matrix.The micro-display chip internal is integrated RGB reservoir, RGB sequential control circuit and control logic circuit.A PWM sequence control circuit is arranged, be used to control on average lighting the time of each pixel, thereby realize control brightness.Control circuit board is made up of microprocessor and image control circuit and VGA interface.Microprocessor and image control circuit provide the logic control signal of various needs for the micro-display chip, for example, frame synchronization, row synchronously, pixel effectively, brilliance control, look-at-me, enable signal, colour saturation control and scan mode, picture position, the three-dimensional frame gating signal of 3D or the like.Control circuit also comprises an electric power management circuit, for complete machine provides the power supply of all size and it is managed so that reduce power consumption.
Fig. 4 shows the chief ray that is sent by OLED micro-display 1 and goes forward side by side into human eye retina's process from importing optical prism 2, two secondary reflections.Optical prism 2 has three curved surfaces, and wherein, first curved surface 21 is a transmission plane, and it is facing to micro-display luminescent device 1, and the image light that micro-display 1 sends imports optical prism 2 by this face 21; Second curved surface 22 in three curved surfaces of optical prism 2 is the reflection transmission plane, its reflection imports the light of optical prism 2, forms the first reflection of prism 2, the reflection ray directive of first reflection the 3rd curved surface 23 on the other side, be reflecting surface, form the reflection second time of optical prism 2; Reflecting surface 23 is minute surfaces, and it will be from second curved surface 22, and the light that promptly reflects transmission plane reflexes to second curved surface 22 again and passes to the retina of human eye by second curved surface 22.Inclination angle between the transmission plane 21 of the light-emitting area of micro-display 1 and optical prism 2 is spent between 36 degree 28, for example can choose 32 degree.Designed distance between the transmission plane 21 of the light-emitting area of micro-display 1 and optical prism 2 is the 2-3 millimeter.The refractive index Nd of the material of optical prism 2 for example can choose Nd=1.25 greater than 1 less than 1.6.
Second curved surface 22 and the 3rd curved surface 23 are spheres, their radius-of-curvature difference, home position difference.Film formed at user's view through the light of two secondary reflections is a virtual image, it has produced the depth of field, virtual size of images and ken size have relation, and the size of the ken is relevant with the radius-of-curvature of second curved surface and the 3rd curved surface, and is also relevant with the field angle of micro-display luminescent device.Because second curved surface of the present invention and the 3rd curved surface are spheres, therefore, can use conventional methods and carry out optical design, even can adopt the refraction theorem of knowing, design with the method for mapping.The advantage of this method is design and manufacture method simple possible.
In order to guarantee picture quality, guarantee that each bar comes the light of self-emitting light source to arrive amphiblestroid path unanimity, the principle of mapping that Here it is, the also method of i.e. mapping design.In order further to improve image quality, first surface 21 of the present invention adopts free form surface.The processing of this curved surface 21 is undertaken by grinding off method under the visual situation of human eye.When by after grinding off method and obtaining visual desirable prism, carry out Mould Machining again and the plastics prism duplicates.Because the design of non-round surface prism, Mould Machining are very complicated and cost is very high, owing to the nonlinear problem of optical system, design and Mould Machining have risk of failure again.Yet the inventive method only relates to the design and the processing of a curved surface, though the method for designing of a free form surface is more original, it is original that it grinds an eyeglass in early days as people, but, obtained an authentic sample in the design process, will there be risk in follow-up Mould Machining, and this method efficient is very high, and success ratio is very high, cost is also very low, actual effect is satisfactory.
Fig. 5 shows focal length of the present invention and adjusts synoptic diagram, and as shown in the figure, OLED position one is normal focal position, for people's use of authentic wisdom eyesight.Logical translation OLED, for example translation 2mm to OLED position two, can use for the people of 300 degree myopia.Recoverable myopia 450-500 degree when translation distance reaches 3mm.Clearly, the position of OLED and optical prism is relative, so both can reach the purpose that focal length is adjusted by translation OLED, also can adjust focal length by the position of translation optical prism.
The present invention is owing to adopt micro-display 1, and its light-emitting area is very little, only has about 10 * 10mm, and power consumption is very little, only needs tens milliwatts.Other control circuit reduces its operating voltage as far as possible under the prerequisite of guaranteed performance, DLC (digital logic circuit) of the present invention adopts 3.3 volts and 1.8 volts of two kinds of voltages, and RGB mimic channel and LED backplane voltage adopt+5 volts or-5 volts of voltages.Because square being directly proportional of power consumption and voltage, thereby the maximum power dissipation of assurance complete machine is not more than 5 volts 200 milliamperes.The little 4-5 of power consumption of the PLM-A55 product that this eye-Treck HMD product produced than in the market OLYMPUS company of Overall Power Consumption of the present invention and Sony Corporation produce doubly.The resolution of these two products has only 300 lines to adopt composite video interface, i.e. S-video interface, and their image resolution ratio is low more than the SVGA resolution of the present invention's 800 lines.Relatively, the power consumption of the PLM-S700HMD product that IOD i-glasses SVGA 3D that SVGA glasses type displayer of the present invention and U.S. i-glasses company produce and Sony Corporation produce is compared between the display of equal resolution, and power consumption is wanted little 5-10 times.This is very valuable to making battery-powered Wearable should be used for saying.
Because the present invention adopts the VGA interface 5 of compatible VESA standard, so he can be connected to the video equipment of any VGA of having interface, for example: PC, notebook computer, Wearable DVD, the mobile DVD with VGA interface or desk-top DVD, set-top box etc.
The key technical indexes of glasses type displayer of the present invention is as follows:
Highest resolution SVGA 852 * 600 * 3 dot matrix;
The RGB8 position i.e. 24 true color;
The optic virtual imaging is equivalent to 2 meters of the depth of field, 62 inch screen visual effects;
The VGA interface of compatible VESA standard;
Support VGA 640 * 480;
Support the 3D data stream of stereoscopic vision frame mode;
The ken: level is not less than 56 degree, vertically is not less than 25 degree;
The complete machine maximum power dissipation is not more than 5 volts 200 milliamperes;
The complete machine maximum volume is not more than 140 * 50 * 32mm;
The complete machine maximum weight is not more than 150 grams.
Claims (11)
1. glasses type displayer, form by micro-display chip, optical prism, display control circuit, it is characterized in that the micro-display chip that described micro-display chip is the OLED material, the image light that the micro-display chip sends imports described optical prism by transmission plane, first curved surface in three curved surfaces of described optical prism is a transmission plane, it is facing to the micro-display luminescent device, and the image light that micro-display sends imports optical prism by this face; Second curved surface in three curved surfaces of optical prism is the reflection transmission plane, its reflection imports the light of optical prism, forms the first reflection of prism, the reflection ray directive of first reflection the 3rd curved surface on the other side, be reflecting surface, form the reflection second time of optical prism; Described reflecting surface is a minute surface, and it will be from second curved surface, and the light that promptly reflects transmission plane reflexes to second curved surface again and passes to user's retina by second curved surface; First surface adopts free form surface in three curved surfaces of described optical prism, and second curved surface and the 3rd curved surface are spheres; Described display control circuit provides the logic control signal of various needs for the micro-display chip.
2. glasses type displayer according to claim 1 is characterized in that the micro-display chip of described OLED material uses two identical micro-display chips, cooperates two identical optical prisms, constitutes glasses type displayer for binocular and usefulness.
3. glasses type displayer according to claim 2 is characterized in that comprising that RGB sequential control, 3D control, focal length adjustment, the image of two micro-display chips, VGA interface, VGA controlled sound control circuit.
4. glasses type displayer according to claim 3 is characterized in that described micro-display chip internal has ranks register and ranks driver to be used to drive the OLED light emitting diode matrix of 852 * 600 dot matrix.
5. glasses type displayer according to claim 4, it is characterized in that described micro-display chip internal integrated RGB reservoir, RGB sequential control circuit and control logic circuit; A PWM sequence control circuit is arranged, be used to control on average lighting the time of each pixel, thereby realize control brightness.
6. glasses type displayer according to claim 5, it is characterized in that described display control circuit is made up of microprocessor and image control circuit and VGA interface, microprocessor and image control circuit be for the micro-display chip provides logic control signal, comprise frame synchronization, row synchronously, pixel effectively, brilliance control, look-at-me, enable signal, colour saturation control and scan mode, picture position, the three-dimensional frame gating signal of 3D.
7. glasses type displayer according to claim 2 is characterized in that the light-emitting area of described micro-display chip and the transmission plane of optical prism, and the inclination angle between two faces is spent between 36 degree 28.
8. glasses type displayer according to claim 7 is characterized in that the light-emitting area of described micro-display chip and the transmission plane of optical prism, and the inclination angle between two faces is 32 degree.
9. glasses type displayer according to claim 8, the refractive index Nd of material that it is characterized in that described optical prism greater than 1 less than 1.6.
10. glasses type displayer according to claim 9 is characterized in that the refractive index Nd=1.25 of described optical prism material.
11. glasses type displayer according to claim 7, it is characterized in that the light-emitting area of described micro-display chip and the transmission plane of optical prism, between two faces under the constant condition in inclination angle, one of them face of translation, be equivalent to the adjustment of the imaging focal length of image, maximum adjustment amount is not more than 3 millimeters.
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| CNB2003101119645A CN100367074C (en) | 2003-10-27 | 2003-10-27 | Spectacle type display device |
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| CNB2003101119645A CN100367074C (en) | 2003-10-27 | 2003-10-27 | Spectacle type display device |
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| CN100367074C true CN100367074C (en) | 2008-02-06 |
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| CNB2003101119645A Expired - Fee Related CN100367074C (en) | 2003-10-27 | 2003-10-27 | Spectacle type display device |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100485448C (en) * | 2006-06-29 | 2009-05-06 | 贾怀昌 | Freely curved face total reflection type visual optical edge glass |
| JP5290091B2 (en) * | 2009-08-31 | 2013-09-18 | オリンパス株式会社 | Eyeglass-type image display device |
| CN101915992B (en) * | 2010-07-23 | 2012-05-16 | 浙江大学 | Free-form surface goggles-based see-through helmet mounted display device |
| CN102062946A (en) * | 2010-11-05 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Spectacles-type display device with communication function |
| EP2786196A4 (en) * | 2011-12-02 | 2015-11-11 | Jerry G Aguren | Wide field-of-view 3d stereo vision platform with dynamic control of immersive or heads-up display operation |
| CN102692709A (en) * | 2012-06-15 | 2012-09-26 | 中航华东光电有限公司 | Spherical-prism-based optical system of head display |
| CN105163268B (en) * | 2012-12-22 | 2020-03-10 | 华为技术有限公司 | Glasses type communication device, system and method |
| CN104238120A (en) * | 2013-12-04 | 2014-12-24 | 全蕊 | Smart glasses and control method |
| CN105137601B (en) * | 2015-10-16 | 2017-11-14 | 上海斐讯数据通信技术有限公司 | A kind of intelligent glasses |
| CN105657407B (en) * | 2015-12-31 | 2018-11-23 | 深圳纳德光学有限公司 | Head-mounted display and its binocular 3D image display method and device |
| CN108761801B (en) * | 2018-08-17 | 2020-10-02 | 杨建明 | Simple and practical augmented reality glasses |
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