CN101432792A

CN101432792A - Method and apparatus for LED based display

Info

Publication number: CN101432792A
Application number: CNA2005800287937A
Authority: CN
Inventors: 西拉·M·施维基
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-01
Filing date: 2005-07-01
Publication date: 2009-05-13

Abstract

A method and apparatus for a light emitting diode based display have been disclosed.

Description

Method and device based on the LED demonstration

Related application

Present patent application requirement sequence number is 60/584920 U.S. Provisional Application No., and this provisional application was submitted on July 1st, 2004, and exercise question is " Method and Apparatus for LEDBased Display ", is incorporated herein with for referencial use.Present patent application requires the right of priority of the U.S. Patent application of sequence number (still unallocated), and this patented claim was submitted on June 30th, 2005, and exercise question is " Method and Apparatus for LED Based Display ", is incorporated herein with for referencial use.It is 10/810300 U. S. application that present patent application relates to sequence number, this application was submitted on March 26th, 2004, exercise question is " Method and Apparatus for Light Emitting Devices BasedDisplay ", with the application be same inventor.

Technical field

The invention belongs to the display systems technology field, more specifically, the present invention relates to a kind of method and device that is used for based on LED (light emitting diode, light emitting diode) demonstration.

Background technology

Display system is the ingredient of transmission information.Many different technology are used for the electronic color display system.Display system based on CRT (cathode-ray tube (CRT) (Cathode Ray Tube)) is widely used in family's (TV and graphoscope) very much, also is used for office, factory, commercial undertaking and public place (for example airport or shopping center).Yet CRT is that big, volume is big and consume lot of energy.This can ask a question.

Display system based on LCD is widely used in portable equipment for example mobile phone, removable personal computer, removable game machine and portable television.Recently, bring into play bigger effect as the display device of office and home computer display based on the display screen of LCD, and select just progressively to replace ubiquitous CRT as showing.Although big and thin flat-faced screen and backlight LCD display based on plasma technology are more expensive relatively at present, yet just more and more welcome.This spending can ask a question.

Adopt the projection display system of SLM (spatial light modulator (spatial light modulators), for example LCD, digital mirroring device (Digital Mirror Devices) or LCOS equipment) to use with the front projection pattern.This equipment can need for example projection lamp of high power light source.This can ask a question.

Rear projection device, superlarge screen TV for example can be based on the big CRT of power consumption.This can ask a question.

LED can obtain now, many large-scale outdoor display system LED organizational systems.This need use the very red, green and blue LED of big figure.Fig. 3 shows the fixed L ED display system based on M * N, and it needs totally 3 * M * N LED.For example, 1024 * 1024 display resolution need with surpass 1,000,000 red, surpass 1,000,000 green and surpass the LED of 1,000,000 indigo plants.Therefore the outdoor display system of LED-based ultra-large type is complicated and quite expensive.This can ask a question.

Thereby all these display systems all have problems.

Description of drawings

The present invention illustrates by example, and is not limited to the figure in the accompanying drawing, wherein:

Fig. 1 has illustrated method of the present invention and has installed attainable network environment;

Fig. 2 has illustrated the block scheme of the computer system that can be used for realizing some embodiments of the present invention;

Fig. 3 has illustrated prior art;

Fig. 4 has illustrated one embodiment of the present of invention, and it illustrates direct demonstration;

Fig. 5 with the block scheme formal specification one embodiment of the present of invention;

Fig. 6 has illustrated one embodiment of the invention, and it illustrates the more detailed details of substrate;

Fig. 7 illustrates one embodiment of the invention, and it minimizes the total kilometres of substrate by using a plurality of red, green, blue LED light beams;

Fig. 8 has illustrated one embodiment of the invention of utilizing sinusoidal motion;

Fig. 9 has illustrated one embodiment of the invention of utilizing projection optics;

Figure 10 has illustrated two embodiment of the present invention that make flat-panel monitor; And

Figure 11 illustrates the one embodiment of the invention that increase Color Range.

Detailed Description Of The Invention

This design as in example as shown in different embodiments of the invention has illustrated how LED (light emitting diode) can be used to produce display system.Multiple light emitting diode is arranged, light emitting diode (so-called LED) for example, resonant cavity light emitting diodes (RCLED), Organic Light Emitting Diode (OLED), electroluminescent diode (ELD), photon recycle semiconductor light-emitting-diode (photonrecycling light emitting diode).

Because of the electroluminescence phenomenon that charge carrier injection semiconductor causes finds that by Round (in 1907) it injects charge carrier silit and observe yellowish light from hard contact.Red LED is invented by Holonyak and Bevacqua (in 1962), and is widely used in instrument and the consumer goods such as counter and wrist-watch soon.Manufacturing process and the better understanding of solid condition apparatus luminous mechanism and the minimized improvement of loss just caused brighter year by year equipment.In display system, utilize LED to have several advantages.Use LED can make the emission display system of fine quality.Generally than non-emission type display system such as backlight LCD or utilize the projection display of SLM, the emission display system is used lower power.This be since a part that is shown screen only for example 10% to 20% typical frame shown by power with maximum.On the other hand, in order to obtain high-high brightness, backlit display has the backlight of the maximum always adjusted to.This has also caused the better contrast ratio of emission display system, and this is because when a zone of screen does not show, the light of this part of screen does not just produce.Can not turn off the light in the backlit display fully, therefore this caused low contrast ratio.

Utilize another advantage of bright red, green, blue LED display system to be: can for example utilize not high, the facile red (626nm of price, AlGaInP LED)) green (525nm,, use GaInN LED) and blue (450nm, use GaInN LED) equipment, can make color display system with Color Range wideer than NTSC standard.In addition, it is correct that Haitz ' s law kept in more than 30 year always, and the light of prediction LED is exported and will be doubled in per 18 to 20 months.

As shown in Figure 4, in an embodiment of the present invention 400, by being installed in exciting light beam and move this substrate and producing colored demonstration of red (404), green (406) on the substrate (402), blue (408) LED with suitable speed.The duration that excites depends on position, the translational speed of substrate and the information content that will show.Fig. 4 shows the view of this demonstration, and wherein for convenience of explanation, substrate (402) illustrates with the amplification form.This is that direct viewing type shows, this is to mean because of demonstration in this embodiment of the invention to be used for direct-view.

Fig. 5 with the block scheme formal specification one embodiment of the invention 500, it illustrates LED-based display system.The shown vision signal of input 501 for providing by electronic system.But this signal adherence to standard form such as VESA (video electronics standard (Video Electronics Standards)) can be simulation or digital form.A kind of new digital standard is DVI (digital visual interface (Digital Visual Interface)).If the input video of system is simulated, input interface becomes digital version 503 with sync section 502 with the analog rgb conversion of signals so.

Another outside input is a power 533, is used for driving and showing electron device.Digital video information 503 is admitted to controller 504.The clock 535 of high-frequency (for example, from 40MHz to 200MHz) is provided to controller 504.Controller 504 (by 511) is received nonvolatile memory 510 and (by 513) receive random access memory 512.RAM (random access memory) 512 is used to store whole frame information.Nonvolatile memory 510 is used for the required various parameters of storage system operation.For example, when the RGB led array is assembled, it is tested to check the consistance of LED brightness.The nuance of brightness (5-10%) is stored in the nonvolatile memory 510, and for example flash memory compensates with permission.Actual range between light beam also is found in test and is stored in the nonvolatile memory 510.

In one embodiment of the invention, any gamma correction (gamma correction) if necessary, for example forms with data in controller 504.Nonvolatile memory 510 has the information about the motion characteristics that produced by sports equipment 514, and described sports equipment 514 is connected to led array 506 by 515.Time when this allows controller 504 to calculate the particular column unlatching and the pulse width of specific pixel.Controller 504 is from position transducer 516 receiving position informations 517.In one embodiment of this invention, linear encoder is used for determining the position.In another embodiment, VCSEL is used as the very accurate light source of arrow beam of light (for example light signal 509), this precision light source for example is 850nm, be installed on movable substrate (as 506) and the photodetector (as 516), it is coated with the Hi-pass filter in the wavelength filter in the fixed position (by 800nm).Light detector signals 517 is given controller.When just assembling (in the manufacturing) display device, carry out the accurate range information of calibration testing with the detecting device of acquisition fixed position installation.This data storage is at nonvolatile memory 510.The advantage of this method is that this positional information is to obtain from substrate in a kind of " not having heavy (weight-less) " mode; Utilize the more connection (as 505) that linear encoder on the substrate need be from substrate (can support led array 506) to controller 504.The number that minimizes the signal (as 505) from substrate (as 506) to controller (as 504) is very important.Led array 506 produces light output 507, and described light output 507 is sent to optical system 508 and for example is used to the screen that shows.

Fig. 6 has illustrated one embodiment of the invention 600, and it illustrates the more detailed details of substrate.Substrate 602 is equipped with thereon: VCSEL604; The light beam 608 of the LEDLED of the first array red LED, the light beam 610 of green LED, and the light beam 612 of blue led; The LED light beam 618 of the second array red LED, the light beam 620 of green LED, and the light beam 622 of blue led; Six chip for driving 614, it is used to drive the LED of first (608,610,612) and second (618,620,622); And the parts from substrate 602 are to the connector 624 of controller (as 504 Fig. 5).

In one embodiment of this invention, LED-based display device operation as follows:

1. the frame that shows of video is hunted down and is stored among the RAM in the described equipment.

2. data are carried out the gamma correction and the adjusting of red, green and blue LED intensity values of pixels, and store it.

3. the substrate that holds red, green and blue LED light beam originates in the high order end position.

4.LED excitation information be sent to substrate with in the impact damper that is stored in chip for driving.The data of several light beams (1-8) are stored in the chip for driving.This chip is organized by color, and promptly a chip for driving is used for redly, and a different chip for driving is used for green and another chip for driving is used for basket.Because the LED of different colours needs different drivings (voltage, electric current etc.), therefore adopt this mode of organizing this driver.For example, red LED is in identical light beam, and this light beam is different from other color.Arbitrary light beam (red, green or blue) all needs two information.First for being timing information, and it is identical for whole light beam.Second is that each LED in the described light beam need be based on video display message that sends and the number relevant with the pulse width of specific LED and pixel.

5. the free counter in each chip for driving (free running counter) resets to zero, and reset signal one removal, and first light beam of light emitting diode is just energized.This guarantees that all chip for driving are synchronous, and with identical time base starting.

6.LED energization sequence carry out, thereby the time utilization appropriate signals value that is being fit to.For example, if the LED light beam is vertically arranged red, green, blue (blue is rightmost light beam), so suitable blue light post LED was energized to produce the first visible vertical light beam in the zero-time, suitable green LED the suitable time (because substrate moves from left to right, after blue LED) energized to produce the first visible vertical light beam with suitable greenness index, energized at later time blue light post then.Therefore, in one embodiment, because each light beam of LED is in identical position, therefore suitable LED is illuminated to produce vertical visible display line (or light beam).

7. controller is continuously red, green and blue light post transmitting time and excitation data with pipeline system, up to whole scannings of finishing image.The knowledge of position transducer and motion feature makes controller understand when to scan and finishes.

8. repeat this sequence now, yet at this moment substrate is to move from right to left.

Repeat this sequence, typically per second is 30 times.This means from left to right or complete passage per second from right to left takes place 60 times.Because the protensive features of people's vision, the beholder sees comfortable demonstration.This technology is not limited to move with per second 60 frames.Can show with higher or lower speed operation.For example, in order to produce 3-D display, but substrate per second motion 120 times, 60 " frames " show left-eye image, and 60 " frames " show eye image synchronously with for example LCD conversion safety goggles.

The screen that plastics are made for example, is used for the physical stability and the protection of equipment, and can has the optical coating of adding (as antireflection) in addition.

Those skilled in the art it should be noted that, this method is compared fixedly the advantage of M * N display system and is that independent red, green and blue LED human eye can not distinguish.In this fixed display, for example during display white, can notice white with red, green and blue point.Utilize this embodiment of the present invention, red, green and blue LED is with row tissues, yet because the motion of substrate, although exciting of LED is designed to that each row physically is separated out, yet excite to time sequencing, thereby color spatially is corresponding to.

In one embodiment of this invention, forming the required most of energy of demonstration is required be used for illuminating LED and the required moving substrate (mechanical energy) that is used for.Formula 1 has provided quality m (Kg) and with the mobile movable carriage of fixed speed v (meter per second) and the kinetic energy of substrate:

Kinetic energy=1/2mv ²(formula 1)

In one embodiment of this invention, for energy minimization, minimum mass m and particularly speed v.The scanning needed time of full frame is normally fixed, thereby can reduce speed v by the total kilometres that reduce carriage and substrate.This can realize by a plurality of rgb light posts that use spaced apart fixedly known distance.Fig. 7 shows one embodiment of the invention 700, wherein shows this method.

Fig. 7 shows a method 700, by using a plurality of red, green and blue light beams 731,732,733 and 734 to minimize the total kilometres of substrate 702.For example, if produce 1280 * 1024 demonstration, and if to use partition distance be 4 light beams of the RGB LED of " A " mm, each light beam can show whole demonstrations (320 * 1024 parts in 320 * 4=1280) so.Light beam 731,732,733 and 734 needn't equidistantly separate and show 320 light beams definitely.Be that spacing A can be wittingly with different value forms.Actual pitch in manufacture process between light beam is through measuring, and the parameter that is fit to is transfused to nonvolatile memory, thus controller can compensate and allow each quartile show 320+/-the x light beam, wherein x can be 0,1,2 or bigger.This has just allowed by overlapping generation seamless image.Use another advantage of multiple beam to be, can produce very bright demonstration.This is because more LED is just being used in demonstration, and it is installed in a bigger zone to allow better heat radiation.Substrate 702 is equipped with thereon: VCSEL 704; Four light beams 731,732,733 and 734 of red, green, blue LED; Two groups of six chip for driving 714 and 728, it is used to drive four light beams; And the parts from substrate 702 are to the connector 724 of controller (as 504 Fig. 5).

In one embodiment of this invention, utilized the linear movement of substrate.Discuss the linear movement of substrate now.For example, if just producing the pixel of 50u, and the spacing of LED is 50u, and so under the situation of one group of light beam of LED, the LED light beam must move 1024 * 50u (51.2mm) and be used for 1024 pixels and show.With four groups of light beams of RGB LED, total amount of movement is 51.2/4mm (12.8mm).Traveling time surpasses 10 milliseconds cycle.With 1 light beam average velocity is 5.12 meter per seconds, is 1.28 meter per seconds with four equally spaced light beam average velocitys.

It is unnecessary using pure linear movement to produce display image.As long as kinetic characteristic is accurately known, the time of being energized by the change particular pixel column just can produce image exactly.For example, if d _iFor producing the distance that pixel moved for i light beam, be used to produce the pixel of equidimension so,

Di=d, constant.

Di=∫ vdt (formula 2)

Wherein upper limit of integral is ti, is limited to t down _I-1

And di is i distance that light beam moved of generation

Ti is the time that i light beam energized and finished

t _I-1It is the time that i-1 light beam energized and finished.

In one embodiment of the invention, adopted sinusoidal motion.This is shown in Figure 8.

Given apart from x (t) (802) by following formula:

X (t)=asin (ω t) (formula 3)

Speed v (t) (802) is given by following formula:

v(t)＝dx/dt

=a ω cos (ω t) (formula 4)

In the zero-time, substrate 806 is in the centre, i.e. x (0)=0.Substrate begins along negative direction to left movement, up to its arrival high order end.At this moment speed is 0.Substrate begins to move right, and through zero position and to the right up to its arrival low order end position.

In one embodiment of this invention, some numerical value are:

ω=2 π f, wherein f is a per second round-robin frequency.

ω=2 π 30 (formula 5)

It is not 0 that part of motion that expectation utilizes speed (positive and negative).This can be the zone of ω t=2 π/3 to 4 π/3 for to the right motion, and for left motion, this can be the zone of ω t=5 π/3 to 7 π/3, and it is rational selection.

From top formula (formula 2-5), controller can be known t _iAnd t _I-1Value because all other amounts are all known.The product of time and speed is constant, thus in order to have the column width of same apparent size, when speed is maximum, the time interval minimum that light beam is energized.On the contrary, if speed is low, large interval then.Yet the time interval of energizing is big more, and it is bright more that light beam can seem.Therefore, be necessary the correction of application-dependent light beam position.The center column speed that Fig. 8 shows at image is maximum.This shows that the center is not brighter than the right-hand member and the left end of image.Correction factor can be applicable to the excitation values of LED to proofread and correct this situation.

In one embodiment of this invention, utilize said method and projection optics to produce electronic projection display system 900, as shown in Figure 9.Here show the cross-sectional view of the projector that utilizes led array.905, digital LED driving data and power 905 are supplied to and have led array and drive 906 substrate, and it is by sports equipment 914 location.The optics output that has led array and drive 906 substrate is sent to and focuses on and projection optical system 960, and the image of its projection focusing is watched being used to.

The method of projector type also can be used for other embodiments of the invention to produce flat-panel monitor as described above.Two kinds of so dull and

stereotyped embodiment

1002 and 1004 of the present invention are shown in Figure 10." straight " wedge-shaped waveguide has been shown in 1002, and illustrate in 1004 " folding " wedge-shaped waveguide.In 1002 and 1004, LED shows " being lower than " wedge-shaped waveguide, and projects image onto wedge-shaped waveguide.

Those skilled in the art can recognize that the present invention can be used for other Screen Technology as the LED projection tools, and for example, screen waveguide technologies is to produce LED-based flat-panel monitor.

More than discuss, for the purpose of discussing, used three kinds of LED; Red, green and blue.The present invention is not limited thereto.For example,, can use LED more than three in order to increase the Color Range that LED shows, and the LED that can use different colours.

For example, in one embodiment of this invention, in display system described herein,, can increase Color Range by using 4 or the light beam of more LED of suitable wavelength.Figure 11 shows one embodiment of the invention 1100, shows the Color Range of the LED 1108 of the LED 1106 of LED 1104,490nm (green 2) of LED 1102, the 520nm (green 1) that use 660nm (red) and 440nm (indigo plant).As can be seen, the Color Range increase has exceeded film (motionpicture) and ntsc television scope, and approaches people's visual range.

In addition, those skilled in the art can recognize that above-described technology can also be used for non-visible light source.For example, can use the LED of infra-red range.This is to the radiation source of fluorescent apparatus and other purposes, and for example expose photoresist, film, plumbous imprint lithography etc. are of great use.

Those skilled in the art can recognize that the substrate that mobile or location has LED can pass through accomplished in many ways, including, but not limited to rail system, jib system, pendulum mode, rotating hinge mode or the like.

Therefore, method and device based on the display system of light emitting diode have been described.

Fig. 1 shows the adaptable network environment 100 of described technology.Network environment 100 has network 102, described network connect S server 104-1 up to 104-S and C client computer 108-1 up to 108-C.More details will be described below.

Fig. 2 shows computer system 200 with the block scheme form, and it can represent any client computer and/or server shown in Figure 1, also may be equipment, client-server among other figure.More details will be described below.

Refer back to Fig. 1, Fig. 1 shows the adaptable network environment 100 of described technology.Network environment 100 has network 102, described network 102 connect S server 104-1 up to 104-S and C client computer 108-1 up to 108-C.As shown, S server 104-1 is connected by network 102 to several computer systems of 108-C form with C client computer 108-1 each other to 104-S, and network 102 can be, for example, and based on the network of company.It should be noted that replacedly, network 102 can for or comprise following one or more: the Internet, Local Area Network, wide area network (WAN), satellite link, fiber optic network, cable system or these and/or other combination.Server can be represented, for example, and disc storaging system or storage and computational resource individually.Similarly, client computer can have calculating, stores and watch ability.Method described herein and device can be applicable to the visual communication device or the equipment of any kind basically, no matter it is this locality or long-range, for example, LAN (Local Area Network), wide area network, system bus or the like.Thereby the present invention both can be applied to S server 104-1 up to 104-S, also can be applied to C client computer 108-1 up to 108-C.

Refer back to Fig. 2, Fig. 2 shows computer system 200 with the block scheme form, and it can represent any client computer and/or server shown in Figure 1.Block scheme is the expression on the high-level concept, can realize by multiple mode and by different architectures.Bus system 202 makes between CPU (central processing unit) (CPU) 204, ROM (read-only memory) (ROM) 206, random-access memory (ram) 208, memory device 210, display 220 (for example embodiments of the invention), audio frequency apparatus 222, keyboard 224, indicator 226, multiple I/O (I/O) equipment and the communication system 230 and interconnects.Bus system 202 can be for for example being following one or more: bus is system bus, periphery component interconnection (PCI), advanced graphics interface (AGP), small computer system interface (SCSI), institute of electrical and electronic engineers (IEEE) standard No. 1394 (live wires), USB (universal serial bus) (USB) for example.CPU204 can be single, a plurality of or even Distributed Calculation resource.Memory device 210 can be compact disk (CD), digital multi-purpose disk (DVD), hard disk (HD), CD, tape, flash memory, memory stick (memory stick), video recorder etc.Display 220 can be, for example, and one embodiment of the invention.Note, depend on the actual realization of computer system, computer system can comprise some of assembly in the block scheme, all, the assembly in the more or block scheme that rearranges.For example, skinny client can comprise the radio hand-held equipment that lacks for example traditional keyboard.Thereby, be possible for many changes of system among Fig. 2.

In order to discuss and to understand the present invention, should understand multiple term and be made description technique and the method for being used for by those skilled in the art.In addition, in description,, explained that many concrete details are to provide comprehensive understanding of the present invention for explanatory purpose.Yet, be apparent that for those of ordinary skill in the art the present invention does not need these details just can implement.In some cases, for fear of making fuzzy of the present invention, known structure and equipment is with block scheme, rather than at length illustrates.These embodiment enough describe in detail so that those of ordinary skill in the art can implement the present invention, should be understood that and to utilize other embodiment, and under the situation that does not deviate from scope of the present invention, can carry out logic, machinery, electricity and other change.

Some part of describing can be according to algorithm or representing the data bit operation in the Computer Storage for example.These arthmetic statements and expression are the employed means of the those of ordinary skill of data processing field, to pass on the essence of its work most effectively to others skilled in the art.Algorithm is in this explanation and be commonly considered as causing the self-congruent action sequence of expected result.Described action is those actions that need the physical treatment of physical quantity.Usually, although unnecessary, this tittle takes to be stored, shifts, makes up, relatively or the form of the electrical or magnetic signal of other operation.Verified is easily sometimes, main for general reason, these signals is waited as position, value, element, symbol, character, term, number mention.

Yet, should be understood that understanding, all and similar terms are to get in touch with suitable physical quantity, and the mark easily that is only used for this tittle.Unless especially otherwise point out, as from discuss, obviously easily seeing, should recognize, whole instructions, the term of discussing use is as " processing " or " calculating " or " computing " or " determining " or " demonstration " etc., can be meant the action or the process of computer system or similar electronic computing device, it is used for being expressed as computer system memory or register or out of Memory storage similarly with being expressed as the data processing of physics (electronics) amount in computer register and the storer or transforming into, other data of physical quantity in transmission or the display device.

The device that is used to carry out operation herein can be realized the present invention.This device can be constructed especially to be used for required purpose, and perhaps it can comprise multi-purpose computer, and described multi-purpose computer selectively starts or reconfigures by being stored in computer program in the computing machine.Such computer program can be stored in the computer-readable recording medium, it for example, but be not limited to the dish of any kind, comprise floppy disk, hard disk, CD, compact disk-ROM (read-only memory) (CD-ROMs) and magnetooptical disc, ROM (read-only memory) (ROMs), random access memory (RAMs), EPROM (EPROM), EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROMs), flash memory, magnetic or light-card etc., perhaps be suitable for the medium of any kind of the e-command of storage computation machine local or computer remote.

The algorithm that this instructions is mentioned not is intrinsic and relevant at any certain computer or other device with display.Various general-purpose systems can be used according to the program of the instruction in this instructions and use, and perhaps the more special-purpose device of structure is finished required method and can be proved easily.For example, can realize with any combination of hard-wired circuit according to any method of the present invention by programmable universal processor or hardware and software.Those of ordinary skill in the art directly understands, the present invention can realize with the computer system configurations except described those computer system configurations, and it comprises handheld device, multicomputer system, based on consumption electronic product microprocessor or programmable, digital signal processing (DSP) equipment, set-top box, network PC, small-size computer, mainframe computer etc.The present invention can also implement in distributed computing environment, and wherein task is by carrying out by the teleprocessing equipment of communication network link.

Method of the present invention can utilize computer software to realize.If with the language compilation that meets recognised standard, the instruction sequence that is designed to realize described method can be compiled on the multiple hardwares platform to be carried out, and with the several operation systems interface.In addition, do not relate to any certain programmed language and describe the present invention.Should understand, multilingual can be used for realizing instruction of the present invention as described in the text.Further, as carry out action or a kind of form that bears results or in addition form (mentioning software in (for example program, process, application, driving ...), is general in the art.This statement only is to represent to make the processor of computing machine carry out the simple expression of moving or bearing results by the software execution of computing machine.

It should be understood that those skilled in the art adopt different terms and technology to describe communication, agreement, application, realization, mechanism etc.A kind of such technology is the explanation according to the realization of the technology of algorithm or mathematic(al) representation.That is, although this technology can for example realize as the actuating code on the computing machine, yet the expression of this technology can be used as formula, algorithm or mathematic(al) representation preferably, pass on and communication more compactly.Thereby those of ordinary skill in the art will appreciate that the piece of expression A+B=C is for can add function, and the realization of its in hardware and/or software needs two inputs (A and B) and produces summation output (C).Thereby, utilize formula, algorithm or mathematic(al) representation should be understood that as describing, have the physical embodiments in hardware and/or software (as computer system, technology wherein of the present invention can be implemented or be implemented as embodiment) at least.

Machine readable media is interpreted as, and comprises being used for storage or transmitting any mechanism by the information of machine (as computing machine) readable form.For example, machine readable media comprises ROM (read-only memory) (ROM); Random-access memory (ram); Magnetic disk storage medium; Optical storage media; Flash memory device; Transmitting signal electronics, optics, acoustics or other form (as carrier wave, infrared signal, digital signal etc.); Or the like.

As employed in this explanation, " embodiment " or " embodiment " or similar term are meant that described feature comprises at least one embodiment of the present invention." embodiment " that mentioned in this explanation might not be meant same embodiment; Yet such embodiment is not mutually exclusive." embodiment " also do not meant that only single embodiment of the present invention.For example, the feature described in " embodiment ", structure, action etc. also may comprise in other embodiments.Thereby the present invention can comprise the multiple combination of embodiment described in the literary composition and/or comprehensive.

The method and apparatus that is used for based on diode displaying so, has been described.

Claims

1. device comprises:

Substrate;

Multiple row light emitting diode (LEDs), it is installed on the described substrate;

The optical position indicator, it is installed on the described substrate;

Driver, it is connected to described multiple row light emitting diode and described optical position indicator; And

Connector, its self-controller is to described driver.

2. device according to claim 1, wherein said substrate moves with repeat pattern.

3. device according to claim 2, the wherein said multiple row light emitting diode space D that separates each other.

4. device according to claim 2, the wherein said multiple row light emitting diode different spacing that separates each other.

5. device according to claim 1, the angle orientation of wherein said multiple row light emitting diode in following group, to select, described group comprises vertical, level and diagonal angle.

6. device according to claim 3 further comprises optical focus and optical projection system, itself and described multiple row light emitting diode optical communication.

7. device according to claim 6, the light output of wherein said optical focus and optical projection system is sent to the entity of selecting in following group, and described group comprises flat screen, curve screens, straight wedge-shaped waveguide and folding wedge-shaped waveguide.

8. device according to claim 1, wherein said multiple row light emitting diode comprise four or more multiple optical diode of different emission.

9. device according to claim 2, wherein said repeat pattern allow the one or more overlapping of described multiple row light emitting diode.

10. method comprises:

Receiver, video information;

Move substrate with light emitting diode matrix;

Detect the position of described substrate;

Produce the information of the speed of described substrate; And

Drive zero or more multiple optical diode in the described light emitting diode matrix based on the described speed of the described position of described substrate, described substrate and the described video information that receives.

11. method according to claim 10, wherein said receiver, video information further comprise based on the feature of the array of described light emitting diode the described video information that receives is carried out gamma correction.

12. method according to claim 10, wherein said moving is sinusoidal motion.

13. further comprising, method according to claim 10, zero in the described light emitting diode matrix of wherein said driving or more multiple optical diode drive light emitting diode with three or more different emission.

14. further comprising based on the predetermined luminance correction factor, method according to claim 13, zero in the described light emitting diode matrix of wherein said driving or more multiple optical diode drive particular led.

15. method according to claim 10 comprises that further moving described substrate makes the one or more light emitting diodes in the described light emitting diode matrix spatially overlapping thereby wherein move described substrate.

16. method according to claim 15 comprises that further the zero that drives in the described light emitting diode matrix overlap in space or more multiple optical diode are to produce seamless demonstration.

17. a device comprises:

Positioning equipment, it is used to locate the substrate with a plurality of light emitting diodes;

Checkout equipment, it is used to detect the position of described substrate;

Receiving equipment, it is used to receive the input signal of representative image;

Feature compensation equipment, it is used to compensate the feature of particular led;

Velocity compensation equipment, it is used to compensate the speed of described substrate; And

Driving arrangement, it is used to drive described a plurality of light emitting diode to produce described image.

18. device according to claim 17 further comprises gamma correcting equipment.

19. device according to claim 17, the described positioning equipment that wherein is used to locate the substrate with a plurality of light emitting diodes further comprises overlay equipment, and it is used for the one or more light emitting diodes of space overlap.

20. device according to claim 19, wherein be used to drive described a plurality of light emitting diode and further comprise the group driving arrangement with the described driving arrangement that produces described image, described group of driving arrangement is used to drive three groups or multi-group light-emitting diode more, and every group of light emitting diode can be launched the light output of different wavelength.