CN1902944A - Method and apparatus for displaying information in automotive application using a laser projection display - Google Patents
Method and apparatus for displaying information in automotive application using a laser projection display Download PDFInfo
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- CN1902944A CN1902944A CN 200480039340 CN200480039340A CN1902944A CN 1902944 A CN1902944 A CN 1902944A CN 200480039340 CN200480039340 CN 200480039340 CN 200480039340 A CN200480039340 A CN 200480039340A CN 1902944 A CN1902944 A CN 1902944A
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Abstract
A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller 142 monitors laser light being reflected from the viewing surface. Since the controller 142 'knows' the amount of power that the LPD is being instructed to deliver, it may compare the known power to the reflected laser light to determine if a foreign object may be in the path of the laser light, and therefore, affecting the magnitude of the laser light. The controller 142 responds to detecting such an event by reducing power to the lasers.
Description
Technical field
The present invention relates generally to electronic console, more specifically, relates to the laser projection display in the automobile.
Background technology
In automobile, considerable information can be presented to the rider.Some information relates to the condition of work of automobile, such as speed, RPM, temperature, oil pressure or the like, and normally at least the driver be concerned about continuously with important.Out of Memory can relate to the more incident in instant, and such as warning, warning condition or the like, their importance may be high, but is not to be concerned about continuously.At last, out of Memory can consider it is amusement, and all Source Musics or DVD player depend on other factors, and its importance can reduce widely.
Typically, these various types of information are by using special be this purposes design, that separate and different device rendered riders to automobile.Typically, autometer and climatic environment control have two displays that separate, and they are placed according to the importance for the driver.And these equipment typically are specified in more permanent relatively position in the automobile.For example, under normal operating condition, the driver may be concerned about his speed of automobile most.Therefore, the speedometer direct visual field that is arranged in the driver accounts for main position.Yet At All Other Times, monitor is linked into that other more is concerned about or compulsory information may be useful.For example, warning message can have precedence over normal operations information, yet warning message can be specified in not too main position.And, the equipment of types of entertainment, all Source Musics and CD Player are designated as the main position with respect to the driver.Therefore, when the driver's operation broadcast receiver, his/her attentiveness can be transferred from the main task that drives a car.
The objective of the invention is to overcome or reduce at least the influence of above-mentioned one or more problems.
Summary of the invention
An aspect of of the present present invention is provided for the equipment of the information in the display automobile.Equipment comprises laser-projector and watches face that this watches face to be placed with the variable image of reception from laser-projector.
Description of drawings
By understanding the present invention with reference to the following description of describing in conjunction with the accompanying drawings, identical label is represented identical unit on the figure, and wherein:
Fig. 1 is a kind of block diagram of form of the top view of one embodiment of the present of invention;
Fig. 2 is the figure of a kind of form of watching face shown in Figure 1;
Fig. 3 A and 3B are presented at the top view of scanning means duration of work at various time sweep devices;
Fig. 4 shows an embodiment of the automobile instrument panel that adopts aspect of the present invention;
Fig. 5 shows another embodiment of the automobile instrument panel that adopts aspect of the present invention; And
Fig. 6 is presented at an embodiment of the back seat entertainment systems of disposing in the automobile that adopts aspect of the present invention.
Though the present invention is easy to carry out the form of various modifications and replacement, specific embodiment of the present invention shows on accompanying drawing as an example and here describes in detail.Yet, should be pointed out that the explanation of the specific embodiment does not here plan to limit disclosed concrete form, and opposite, the present invention includes all modifications, equivalent and the alternative that belong to by the spirit and scope of the present invention of claims regulation.
Embodiment
Illustrative embodiment of the present invention is described below.All characteristics of actual embodiment are not described in the present technique specification for clarity.Certainly, in the exploitation of the embodiment that should be appreciated that in any such reality, must make the specific decision of many embodiments, reach developer's specific target, such as the relevant constraints relevant with commerce of compliance system, these conditions are different with different embodiments.And, should be appreciated that such development effort may be complicated with time-consuming, in any case but, it is the routine of undertaking from those skilled in the art that present disclosure benefits.
Following co-pending application integrally is being hereby incorporated by reference: Mik Stern etc., " Method and Apparatus for Aligning a Plurality of Lasers in anElectronic Display Device "; Mik Stern etc., " Method and Apparatus forControllably Reducing Power Delivered by a Laser ProjectionDisplay "; Narayan Nambudiri etc., " Method and Apparatus forProviding an Interface Between a Liquid Crystal Display Controllerand a Laser Projection Display "; Paul Dvorkis etc., " A Color LaserProjection Display "; Chinh Tan etc., " Method and Apparatus forCapturing Images Using A Color Laser Projection Display "; FredWood etc., " Method and Apparatus for Conserving Power in a LaserProjection Display "; Ron Goldman etc., " A Laser Projection Display "; Carl Wittenberg etc., " Method and Apparatus for ControllablyCompensating for Distortions in a Laser Projection Display "; With Dmitriy Yavid etc., " Method and Apparatus for ControllablyModulating a Laser Projection Display ".
Forward accompanying drawing now to, specifically with reference to Fig. 1, demonstration is according to the block diagram of a kind of form of the laser projection display (LPD) 100 of one embodiment of the present of invention on the figure.In illustrative embodiment, LPD 100 comprises three lasers 102,104,106, and each can launch light beam 108,110,112, comprises unique color, such as red, green or blue.It will be appreciated by those skilled in the art that laser and can change, and do not deviate from the spirit and scope of the present invention from the number of color of the light of its reflection.
Laser 102,104,106 are arranged on the common sides 114, light beam 108,110,112 are directed on angle relative to each other to be incident upon the common basically position 116 such as first scanning means of first scanning reflection mirror 118, and these light beams are reflected into from this position and are light beam 120,122,124.In illustrative embodiment, first scanning reflection mirror 118 vibrates on axle 120 with higher relatively speed (for example, about 20-30kHz).The rotation of first scanning reflection mirror 118 or vibration make light beam 108,110, and 112 move.Just, when the angle position of first scanning reflection mirror 118 changes, also change from the angle of the reflection of the light beam 120,122,124 of first scanning reflection mirror 118.Therefore, when mirror oscillates, beam reflected 120,122,124 are scanned, and cause light beam 120,122,124 moving along the one-component of two dimensional display.
The second component of two dimensional display produces by second scanning means such as speculum 126.In illustrative embodiment, second speculum 126 is coupled to motor 128 at pivoting point 130 places, so that produce around the rotation or the oscillating movement of the axle of the rotating shaft that is substantially perpendicular to first speculum 118.Light beam 120,122,124 are reflected out from second speculum 126 becomes light beam 132,134,136, and is directed to the face 138 of watching.Watch face 138 can get any form of wide range of forms, and do not deviate from the spirit and scope of the present invention.For example, watching face 138 can be the screen of fixing, it can be by laser 102,104,106 fronts are illuminated or backlit, and can be comprised in for (not shown) in the common shell of LPD 100, perhaps alternatively, watch face 138 can get any easily, the form of common plane surface, such as with isolated wall of LPD100 or screen.
Second speculum 126 is compared with the speed of first speculum 118, with relatively slow speed (for example 60Hz) vibration or rotation.Therefore, should be appreciated that as shown in Figure 2, light beam 132,134,136 follow the path 140 on display surface 138 usually.It will be appreciated by those skilled in the art that path 140 is at shape and the conceptive raster scan that adopts usually that is similar in cathode ray tube television receiver and computer monitor.
Though the present invention describes at the embodiment aspect that adopts first and second scanning reflection mirrors 118,126 separately, it will be appreciated by those skilled in the art that similar path 140 can be produced by using single speculum.Single speculum can move around two rotating shafts, and the fast and slow oscillating movement along two normal axis is provided.
As what see, because laser 102,104 from Fig. 1,106 angle position, even at laser 102,104,106 mechanically and optically are arranged in same plane and are transmitted light beam 108 in the same point on the speculum 118 (on rotating shaft 120), 110,112, each light beam has different angles of reflection, and this makes light beam 120,122,124 disperse.Controller 142 is provided to controllably give laser 102,104,106 supplying energies, make light beam 120,122 effectively, 124 conllinear, like this, they can be reflected by second speculum 126, and are sent to the same point of watching face 138, and watch face 138 relatively independent from the distance of second speculum 126.
Forward Fig. 3 A and 3B now to, discuss to make light beam 120,122, the operation of the controller 142 of 124 conllinear.In order to simplify discussion, only show two lasers 102,104 on Fig. 3, but it will be appreciated by those skilled in the art that notion discussed here can be extended to three or more laser, and do not deviate from the spirit and scope of the present invention.As shown in Figure 3A, if 102,104 quilt while of laser supplying energy, then beam reflected 120,122 is dispersed.Yet shown in Fig. 3 B, if laser 102,104 is supplied energy with the slightly different time, beam reflected 120,122 can be made into follows single common path (that is light beam 120,122 conllinear).For example, if laser 102 is supplied energy at very first time t1, then speculum 118 will be in the first position, and represent as solid line, and light beam 108 mirror 118 that will be reflected reflect and becomes light beam 120.Subsequently, if laser 104 is supplied energy at the second time t2, then speculum 118 will be in the second place, represent as dotted line, and light beam 110 mirror 118 that will be reflected reflect and becomes light beam 122.By control time t2 accurately, speculum 118 will be in a position, so that accurately along the path folded light beam 122 substantially the same with light beam 120.
Therefore, by the operation of controller 142, light beam 120,122 is conllinear basically, but skew a little on the time.Just, light beam 120,122 is projected to same basically point on the display surface 138 now, but in the slightly different time.Yet, because the persistence of vision of people's eyes, temporal variation be detect less than.Just, under the situation of three Optical Maser Systems shown in Figure 1, each laser 102,104,106 will controllably be delivered to the laser of the color of uniqueness and intensity in relative short time window and watch on the face 132 same point basically.People's eyes will detect the color of separating less than three kinds, but will perceive the mixing of three light beams, and like this, coordination and tone that want appears at this point of watching on the face.Those skilled in the art will appreciate that this processing procedure can be along the path 140 repeats repeatedly, is created in the image of watching on the face 132 again.
Forward Fig. 1 to, photodetector 144 is arranged to receive from watching face 138 laser light reflected.Photodetector 144 can be got the arbitrary form of wide range of forms, comprises single photosensitive unit or is aligned to a plurality of photosensitive units of grid.In certain embodiments, comprising that machinery/optical system 146 focuses on photodetector 144 to laser light reflected, may be useful.
Photodetector 144 is coupled to controller 142 via line 148.Expression can be sent to controller 142 on online 148 by the signal of the amplitude of photodetector 144 detected laser light reflected.In some cases, such as when photodetector 144 is made up of the grid of optical sensor or photosensitive unit or array, the information of also carrying the position of relevant laser light reflected may be useful.As discussing in more detail in conjunction with Fig. 4, controller 142 can use the information of the amplitude of relevant laser light reflected, determines usually whether the interior condition of transmission path of laser changes, such as being blocked by people or object.Whether controller 142 can use the information of relevant such incident to determine to watch face to be touched.Just, can make and watch face is " touch-sensitive ", and therefore a kind of feedback from the operator can be provided.
Controller 142 can watched the Show Button or other addressable icon on the face, and if controller 142 detect, the face of watching of that part of the Show Button is touched, then controller 142 can be taked response activities.For example, controller 142 can show the icon that is marked with " highlighting ", and if controller 142 detect the user and contact this and " highlight " icon, then controller can be connected this and highlights.Similarly, by suitably the configuration or tagged icon display watching on the face, can implement many other functions.
Watch face 138 can get any various forms, and can be that the front is illuminated or backlit.Adopt an embodiment of the automobile instrument panel of aspect of the present invention to be shown in Fig. 4.In the embodiment that shows, LPD 400 is placed with and shows one or more images on windshield 402 and/or instrument board 404.LPD 400 is the inner surface that upwards projects to windshield 402 to small part via the image of speculum 405 reflections.In certain embodiments, the inner surface of windshield 402 can have a zone 406 that is processed into the visibility of the picture screen that enhancing seen by the driver.For example, the zone 406 can have the reflective material that is added on it, and the driver can see so that at least a portion laser that is sent by LPD 400 from windshield 402 reflections, becomes.Like this, LPD 400 can be used for producing " crown " demonstration, and presentation information is given the driver.
By at least a portion of LPD 400 projections show can transmit by or reach the rear surface of instrument board 404 around speculum 405.In illustrative embodiment, instrument board can be by by the material construction of seeing with the driver of LPD 400 backlit or form.Just, at least a portion laser that is radiated at the rear surface of instrument board 404 will transmit by instrument board, become can see at the front surface of instrument board 404.
Those skilled in the art are to be appreciated that, various icons or image may be displayed on windshield 402 and or instrument board 404 on, mail message give the driver and the operation of the subsystem that allows driver's Control of Automobile or wherein comprise is provided or be modified in instrument board 404 or windshield 402 on the information and or the appearance of icon and the interface of position that show.The driver can be such as by selecting one of a series of arrangements of selecting in advance or being arranged in the instrument that shows on his her panel board by the appearance of customization instrument according to the personal like.For example, the position of instrument can be modified by " draw and put down " operation.The driver can select instrument to the new position of more wanting by instrument board that touches Displaying Meter on it and the finger of drawing him then.
In addition, controller 142 can be by that select or customizablely be programmed about the position of some instrument/information and the preferential controlling schemes of brightness in advance.Just, under the condition of normal running, the main positions display automobile speed on windshield 402 and/or instrument board 404 may be useful.Yet if detect some condition, controller 142 can be discerned the demonstration that characterizes new important information at least temporarily.For example, drop into chill point if detect external temperature, then display message may be favourable so that obtain driver's attention better on instrument board 404 or windshield 402.Warning message about the condition of automobile can be treated similarly.For example, about the overheated information of engine can with big brightness or even the icon of flicker be shown.
Referring now to Fig. 5, show the alternative embodiment of the layout that is used for LPD 400 on the figure.In the present embodiment, LPD 400 is placed with and makes that at instrument board 404 and windshield 402 be that the front is illuminated.LPD 400 also can be used for showing the image that can see, entertainment systems 500 by the rider of back seat.Speculum 502 can be placed with at least a portion laser of reception by LPD 400 projections, and it is reflected in the rear surface of the screen 504 of backlit.LPD 400 can be used for showing film, TV programme, recreation, videotelephony image or the like then.
Fig. 6 shows the entertainment systems 600 of replacement, and wherein LPD 400 is arranged to Display projector at first and second screens that illuminate previously 601,602.Screen 601,602 can be placed on the rear surface of the driver of front and passenger-seat.Like this, LPD 400 can show film, TV programme, recreation, videotelephony image or the like on screen 601,602.And first scanning reflection mirror, 118 (see figure 1)s of LPD 400 can be configured on screen 601,602 (with vertically) scan laser flatly.Controller 142 can be programmed in speculum 118 sensings and turn-off laser during the zone between the screen 601,602, produces image separately thus on two screens 601,602.Two images can use common source, and like this, two images are identical, or they can use source separately, produce two incoherent images.For example, screen 601 can be used for showing film, and screen 602 can be used for the display video recreation.
Unless point out specially, or as from discuss, seeing, such as " processing ", or " calculating ", or " determining ", or the term of " demonstration " etc., relate to computer system or the similarly action and the processing of electronic computing device, their manipulations and a data conversion of the amount of the electronics of the physics of representative in the RS of computer system are to memory or the register represented similarly in computer system, or other data of the physical quantity in other such information storage device, transmission or display unit.
It will be appreciated by those skilled in the art that the various system layer, subprogram, the module that show among the various embodiment here can be executable control units.Control unit can comprise microprocessor, microcontroller, digital signal processor, processor card (comprising one or more processors or controller) or other control or computing equipment.The storage facility that relates in this discussion can comprise one or more machine-readable storage medium, is used to store data and instruction.Storage medium can comprise the memory of different forms, comprise semiconductor memory system, such as dynamic or static RAM (DRAM or SRAM), can wipe and programmable read only memory (EPROM), electric erasable and programmable read only memory (EEPROM) and flash memory; Disk is such as fixed disk, floppy disk, removable disk; Other magnetic media comprises tape; And optical medium, such as compact disk (CD) or digital video disk (DVD).The instruction of composition various software layer, subprogram, module in various systems can be stored in various storage facilities.Instruction makes corresponding system carry out the action of programming when carrying out in the Be Controlled unit.
More than disclosed specific embodiment only be illustrative because the present invention can with benefit from the instruction here, those skilled in the art see, and different but form of equal value is modified and puts into practice.And, do not plan the details of the construction or design that shows is here applied restriction, unless describe in the following claim.Therefore, for implementing and using the needed treatment circuit of described system can be with the treatment circuit of application-specific integrated circuit (ASIC), software-driven.Firmware, programmable logic device, hardware, discrete component or be implemented with the device of upper-part, as benefit from present disclosure, those skilled in the art see.So, can see, more than disclosed specific embodiment can be changed or be modified, and all such changes are considered to belong in the scope and spirit of the present invention.Therefore, the protection of seeking here is as setting forth in the claim below.
Claims (1)
1. equipment that is used for the information of display automobile comprises:
Laser-projector;
Watch face, be placed with the variable image of reception from laser-projector.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53392003P | 2003-12-31 | 2003-12-31 | |
| US60/533,920 | 2003-12-31 | ||
| US10/836,811 | 2004-04-30 |
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| Publication Number | Publication Date |
|---|---|
| CN1902944A true CN1902944A (en) | 2007-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480039340 Pending CN1902944A (en) | 2003-12-31 | 2004-12-21 | Method and apparatus for displaying information in automotive application using a laser projection display |
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| CN (1) | CN1902944A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334530B (en) * | 2007-06-27 | 2011-01-19 | 先进微系统科技股份有限公司 | Head-up-display system |
| CN103140791A (en) * | 2010-10-01 | 2013-06-05 | 松下电器产业株式会社 | See-through display device and vehicle having see-through display device mounted thereon |
| CN103777443A (en) * | 2012-10-19 | 2014-05-07 | 谈顺毅 | Automobile projection display system |
| CN104395128A (en) * | 2012-06-25 | 2015-03-04 | 丰田自动车株式会社 | Information display device for vehicle |
| CN106569335A (en) * | 2015-10-08 | 2017-04-19 | 世益电子工业股份有限公司 | Image display system |
-
2004
- 2004-12-21 CN CN 200480039340 patent/CN1902944A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334530B (en) * | 2007-06-27 | 2011-01-19 | 先进微系统科技股份有限公司 | Head-up-display system |
| CN103140791A (en) * | 2010-10-01 | 2013-06-05 | 松下电器产业株式会社 | See-through display device and vehicle having see-through display device mounted thereon |
| CN103140791B (en) * | 2010-10-01 | 2016-03-30 | 松下知识产权经营株式会社 | The vehicle of perspective display device and lift-launch perspective display device |
| CN104395128A (en) * | 2012-06-25 | 2015-03-04 | 丰田自动车株式会社 | Information display device for vehicle |
| CN103777443A (en) * | 2012-10-19 | 2014-05-07 | 谈顺毅 | Automobile projection display system |
| CN106569335A (en) * | 2015-10-08 | 2017-04-19 | 世益电子工业股份有限公司 | Image display system |
| CN106569335B (en) * | 2015-10-08 | 2019-08-16 | 世益电子工业股份有限公司 | Image display system |
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