CN101116346A - Method and apparatus for providing an interface between a liquid crystal display controller and a laser projection display - Google Patents
Method and apparatus for providing an interface between a liquid crystal display controller and a laser projection display Download PDFInfo
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- CN101116346A CN101116346A CNA2004800393753A CN200480039375A CN101116346A CN 101116346 A CN101116346 A CN 101116346A CN A2004800393753 A CNA2004800393753 A CN A2004800393753A CN 200480039375 A CN200480039375 A CN 200480039375A CN 101116346 A CN101116346 A CN 101116346A
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Abstract
An apparatus is provided for controlling a laser projection device (LPD). The apparatus is comprised of a liquid crystal display controller, a laser projection display controller, and a laser projection display engine. The liquid crystal display controller is adapted to receive video signals indicative of a visual display and convert the video signals to control signals suitable for controlling a liquid crystal display panel. The laser projection device controller is adapted to receive the control signals from the liquid crystal display controller and use the control signals to control a laser projection display. The laser projection device engine is adapted to display an image under the control of the laser projection device controller.
Description
Technical field
Relate generally to electronic console of the present invention relates more specifically to the laser projection display (LPD) of available liquid crystal display (LCD) controller drives.
Background technology
Recently, developed the optical device that utilization projects two or more lasers on the common location.For example, in color laser projector equipment (LPD), can arrange three lasers to project on the single common location.Each of these three lasers has the unique color parts, and its intensity of may command changes the color of the combined light that presents on the single common location.By when controllably encouraging each laser, in two-dimensional array, scanning the light of three lasers, can make relative complex but high-resolution color monitor.
Many other display devices have been developed so far.For example, electronics industry has dropped into the essence effort and fund designs and make LCD (LCD) panel, and extracts image and control those images to reach fine tuning and the very satisfied required electronic controller of image at the LCD panel from vision signal.But the signal that lcd controller generated can not be directly compatible with the LPD of up-to-date research and development.Thereby, if the LCD panel is substituted by LPD substantially, may waste the effort and the fund that drop into lcd controller to a great extent.In addition, owing to research and develop the required time of LPD controller of the commercial quality of relative complex, may delay to use and accept LPD.
The present invention is intended to overcome or reduce at least the influence of the one or more problems that propose above.
Summary of the invention
In one aspect of the invention, provide a kind of device.This device comprises LCD controller and laser projection display controller.LCD controller is suitable for receiving the vision signal of indication visual display, and converts this vision signal to be suitable for controlling panel of LCD control signal.The laser projection device controller is suitable for receiving the control signal from LCD controller, and uses this control signal to control laser projection display.
In another aspect of the present invention, provide a kind of device.This device comprises LCD controller, laser projection display controller, and the laser projection display engine.LCD controller is suitable for receiving the vision signal of indication visual display, and converts this vision signal to be suitable for controlling panel of LCD control signal.The laser projection device controller is suitable for receiving the control signal from LCD controller, and uses this control signal control laser projection display.The laser projection device engine is suitable for display image under the control of laser projection device controller.
Aspect another, provide a kind of method of controlling the laser projection device engine of the present invention.This method comprises the vision signal that receives the indication visual display, and converts this vision signal to be suitable for controlling panel of LCD control signal.Thereafter, the control signal of panel of LCD is received and converts to the signal that is suitable for controlling laser projection display.
Description of drawings
Can understand the present invention below in conjunction with the description that accompanying drawing carries out by reference, the similar element of similar reference numerals in the accompanying drawing, wherein:
Fig. 1 is the schematic block diagram of the top figure of a kind of embodiment of laser projection device (LPD) that can use in the present invention;
Fig. 2 is the schematic views of the visible surface shown in Fig. 1;
Fig. 3 A and 3B describe scanning device top view at different time in its operating process;
Fig. 4 is the signal figure of a kind of embodiment of LPD controller of Fig. 1;
Fig. 5 is the signal figure of the optional embodiment of LPD controller of Fig. 1;
Fig. 6 is the signal figure of the optional embodiment of LPD controller of Fig. 1; And
Fig. 7 describes the signal figure based on the projecting apparatus of embodiment of the present invention;
Though the present invention allows various modifications and alternative forms, shown as an example in the accompanying drawings and also described its specific embodiments here in detail.But be understood that the description of specific embodiments is not planned invention is limited to disclosed particular form here, the present invention on the contrary covers and belongs to invention essence and interior all modifications, equivalence and the possibility of category that the accessory claim book is limited.
Embodiment
Example embodiment of the present invention is described below.For clear, actual all features of implementing are not described in this specification.Certainly will be appreciated that in the exploitation of any this actual embodiment, must make many decisions relevant, for example comply with the relevant and commercial related constraint of systems different in each is implemented to reach developer's specific purpose with enforcement.In addition, will be appreciated that this development effort may be complicated and consuming time, yet be to benefit from the routine matter that those skilled in the art of present disclosure bear.
Below common pending application quote as a reference in this integral body: people's such as Mik Stern the method and apparatus of in electronic display unit, aiming at a plurality of lasers; People's such as Mik Stern the method and apparatus that controllably reduces the power that laser projection display emits; The method and apparatus of people's such as NarayanNambudiri use laser projection display display message in automobile is used; People's such as Narayan Nambudiri the method and apparatus that interface between LCD controller and the laser projection display is provided; People's such as Paul Dvorkis color laser projection display; People's such as Chinh Tan use color laser projection display is caught the method and apparatus of image; People's such as Ron Goldman laser projection display; People's such as Carl Wittenberg the method and apparatus that controllably compensates the distortion in the laser projection display; And the method and apparatus of the laser in people's such as DmitriyYavid the controllably modulated laser projection display.
Turn to accompanying drawing now,, shown the schematic block diagram of laser projection display (LPD) 100 according to one embodiment of this invention especially with reference to figure 1.In the embodiment of institute's example, LPD 100 comprises three lasers 102,104,106, and each can send and comprise unique color such as red, green or blue light beam 108,110,112.Those skilled in the art will be appreciated that the color of number that can change laser and the light that sends therefrom, and do not deviate from essence of the present invention and category.
Laser 102,104,106 is arranged in the common plane 114, and light beam 108,110,112 relative to each other points to angularly, drop on the basic common location 116 of first scanning device as first scanning mirror 118, they are reflected as light beam 120,122,124 therefrom.In the embodiment of institute's example, (for example, about 20～30KHz) about axle 120 vibrations with relative two-forty for first scanning mirror 118.The rotation of first scanning mirror 118 or vibration cause that light beam 108,110,112 moves.Just, when the position, angle of first scanning mirror 118 changed, light beam 120,122,124 angles of reflection from first scanning mirror 118 also changed.Therefore, when mirror vibrated, scanning reflection light beam 120,122,124 was to cause moving of one-component that light beam 120,122,124 shows along two dimension.
Produce the second component that two dimension shows by second scanning device such as mirror 126.In the embodiment of institute's example, second mirror 126 is connected to motor 128 at pivoting point 130 places, make to produce about with the rotation or the oscillating movement of the axle of the basic quadrature of rotating shaft of first mirror 118.Light beam 120,122,124 becomes light beam 132,134,136 from 126 reflections of second mirror, and points to visible surface 138.Visible surface 138 can present any of various ways, and does not deviate from essence of the present invention and category.For example, visible surface 138 can be the fixedly screen that illuminates with laser 102,104,106 fronts or the back side, also can be contained in the total shell of LPD 100 (not showing), perhaps visible surface 138 can be taked the form of any general easily flat surfaces alternatively, for example wall or the screen that separates with LPD 100.
Compare with the speed of first mirror 118, second mirror 126 is with relative low rate vibration or rotation (for example about 60Hz).Therefore, will be appreciated that as shown in Figure 2, light beam 132,134,136 is the path 140 on the display surface 138 usually.Those skilled in the art will be appreciated that path 140 is in shape with conceptively be similar to normally used raster scan in cathode ray tube television receiver and the computer display.
Though describe the present invention here in the context of the embodiment of using first and second scanning mirrors 118,126 separately, those skilled in the art will be appreciated that and can produce similar path 140 by using single mirror.This single mirror can move about two rotating shafts, so that the speed oscillating movement along two normal axis to be provided.
Can from Fig. 1, see, because location, the angle of laser 102,104,106, locate to transmit light beam 108,110,112 even on machinery and optics, arranged laser 102,104,106 with the same point (on the rotating shaft 120) in same plane 114 and on mirror 118, each has different angles of reflection, and this causes light beam 120,122,124 to be dispersed.Controllably excitation laser 102,104,106 of controller 142 is provided, to impel light beam 120,122,124 conllinear effectively, make them to reflect and to be delivered to and visible surface 138 same point on the relative irrelevant visible surface 138 of the distance of second mirror 126 from second mirror 126.
Turn to Fig. 3 A and 3B now, the operation that controller 142 impels light beam 120,122,124 conllinear is discussed.In order to simplify discussion, two lasers of example 102,104 only among Fig. 3 may extend into three or more laser but those skilled in the art will be appreciated that notion discussed herein, and do not deviate from essence of the present invention and category.As shown in Fig. 3 A, if while excitation laser 102,104, folded light beam 120,122 is dispersed.But as shown in Fig. 3 B,, can make light beam 120,122 so along single co-route (being light beam 120,122 conllinear) if at slightly different time excitation laser 102,104.For example, if at very first time t1 place excitation laser 102, mirror 118 will be in the primary importance of being represented by solid line so, and light beam 108 will become light beam 120 from mirror 118 reflections.Subsequently, if at the second time t2 place excitation laser 104, mirror 118 will be in the second place that is illustrated by the broken lines so, and light beam 110 will become light beam 122 from mirror 118 reflections.By control time t2 accurately, mirror 118 will be in along reflecting the position of light beam 122 exactly with light beam 120 essentially identical paths.
Thereby, by the operation of controller 142, light beam 120,122 basic conllinear, just skew a little on the time.Just, light beam 120,122 all projects the basic identical point on the display surface 138 now, just in the slightly different time.But owing to persisting of human eye, temporal variation is not perceptible.Just, in the situation of three lasers described in Fig. 1, the basic identical point of each of laser 102,104,106 will controllably be sent unique color and intensity in short relatively time window laser to the visible surface 132.Human eye can not be discovered three kinds of seperate colors, but will discover the mixed of three kinds of light beams, make that this some place on visible surface presents mediation, required color.Those skilled in the art will be appreciated that this process can be along the path 130 repeatedly many times so that on visible surface 132 reconstructed image.
Schematically illustrating of a kind of embodiment of Fig. 4 example controller 142.Usually, in the embodiment of example shown in Figure 4, controller 142 comprises conventional liquid crystal display (LCD) controller 400 and LPD controller 402.In this embodiment, LPD controller 402 is connected to the output of lcd controller 400.LPD controller 402 receives the signal/information that drives the LCD panel usually, but LPD controller 402 uses this LCD panel signal driving LPD engine 404 to set up required demonstration in this embodiment.Like this, system utilizes conventional lcd controller 400 to carry out very most of processing, leave for LPD controller 400 conversion LCD panel signal/information with by 404 controls of LPD engine and display object (for example text, picture, icon etc.) than simple task.
In optional embodiment of the present invention, not that LCD and LPD controller 400,402 are separated physically, shown combination LCD/LPD controller 500.In this embodiment of the present invention, the LPD controller embeds in the lcd controller.In this embodiment, control LPD engine 404 required features are added to lcd controller, make the combination LCD/LPD controller 500 that as a result of produces to control LCD or LPD by software, hardware or firmware.Combination LCD/LPD controller 500 provides the suitable signal of telecommunication to present image via LPD engine 404 or conventional LCD (not showing).
As shown in Figure 6, LPD controller 402 and/or combination LPD/LCD controller 500 can be taked the form of microprocessor or microcontroller 600.Usually, the function of LPD controller 402 can realize in microprocessor/microcontroller 600 by the conventional programming technology.Alternatively, the conventional lcd controller such as the lcd controller 400 that use microprocessor/microcontroller to form can be modified, with control LPD engine 404 or LCD panel under software control.
Unless statement in addition clearly, perhaps be obvious under discussion, term is as " processing " or " calculating " or " estimation " or " determining " or " demonstration " etc. refer to computer system or similar electronic computing device makes the Data Control that is expressed as the physical electronic amount in the computer system RS and is transformed into action and the process that is expressed as other data of physical quantity in computer system memory or register or other this information stores, transmission or display device similarly.
Those skilled in the art will be appreciated that various system layer, routine or the module of example can be to carry out control unit in the various embodiments here.Control unit can comprise microprocessor, microcontroller, digital signal processor, processor card (comprising one or more microprocessors or controller), perhaps other control or computing equipment.The memory device of mentioning in this discussion can comprise one or more machine-readable storage media that are used to store data and instruction.Storage medium can comprise multi-form memory, comprises semiconductor memory apparatus such as dynamic or static RAM (DRAM or SRAM), Erasable Programmable Read Only Memory EPROM (EPROM), Electrically Erasable Read Only Memory (EEPROM) and flash memory; Disk such as fixed disk, floppy disc, moveable magnetic disc; Other magnetic media comprises tape; And light media such as CD (CD) or digital video disk (DVD).The instruction that constitutes various software layers, routine and module in various systems can be stored in the respective storage devices.Instruction impels corresponding system to carry out the action of having programmed when the Be Controlled unit is carried out.
Above disclosed specific embodiments be exemplary because can be with benefiting from the difference that those skilled in the art of lecturing content here expect easily but the present invention is revised or put into practice to mode of equal value.In addition, except describing in claims below, do not plan the details of shown here structure or design is applied restriction.Therefore, the layout of implementing or use application-specific integrated circuit (ASIC), software-driven treatment circuit, firmware, programmable logic device, hardware, discrete parts or upper component that the required treatment circuit of descriptive system can understand with the those skilled in the art that benefit from present disclosure is implemented.Therefore, top apparently disclosed specific embodiments can change or revise, and all this changes are considered to be in category of the present invention and the essence.Therefore, the protection of looking for is here stated in claims below.
Claims (14)
1. device comprises:
LCD controller is suitable for receiving the vision signal of indication visual display and converting this vision signal to be suitable for controlling panel of LCD control signal; And
The laser projection device controller is suitable for receiving from the control signal of LCD controller and uses this control signal to control laser projection display.
2. according to the device of claim 1, also comprise the laser projection device engine, be suitable for display image under the control of laser projection device controller.
3. according to the device of claim 1, the control signal that wherein is used to control panel of LCD comprises pixel data.
4. according to the device of claim 1, the control signal that wherein is used to control panel of LCD comprises the capable and clock of frame.
5. according to the device of claim 1, wherein laser projection display controller and LCD controller are worked under software control.
6. according to the device of claim 5, wherein laser projection display controller and LCD controller are included in the joint equipment.
7. according to the device of claim 6, wherein laser projection display controller and LCD controller are worked under the control of common software program.
8. device comprises:
LCD controller is suitable for receiving the vision signal of indication visual display and converting this vision signal to be suitable for controlling panel of LCD control signal;
The laser projection device controller, the control signal that is suitable for receiving from LCD controller also converts this panel of LCD control signal to be suitable for controlling the laser projection display engine control signal; And
The laser projection device engine is suitable for display image under the control of laser projection device controller.
9. device according to Claim 8, the control signal that wherein is used to control panel of LCD comprises picture element signal.
10. device according to Claim 8, the control signal that wherein is used to control panel of LCD comprises the capable and clock of frame.
11. device according to Claim 8, wherein laser projection display controller and LCD controller are worked under software control.
12. device according to Claim 8, wherein laser projection display controller and LCD controller are included in the joint equipment.
13. device according to Claim 8, wherein laser projection display controller and LCD controller are worked under the control of common software program.
14. a method of controlling the laser projection device engine comprises:
Receive the vision signal of indication visual display;
This vision signal is converted to the control signal that is suitable for controlling panel of LCD;
Reception is used for the control signal of panel of LCD;
This control signal is converted to the signal that is suitable for controlling laser projection display.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53391603P | 2003-12-31 | 2003-12-31 | |
| US60/533,916 | 2003-12-31 | ||
| US10/930,721 | 2004-08-31 |
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| Publication Number | Publication Date |
|---|---|
| CN101116346A true CN101116346A (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2004800393753A Pending CN101116346A (en) | 2003-12-31 | 2004-12-21 | Method and apparatus for providing an interface between a liquid crystal display controller and a laser projection display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064959A (en) * | 2018-08-01 | 2018-12-21 | 合肥惠科金扬科技有限公司 | A kind of display device and display methods |
-
2004
- 2004-12-21 CN CNA2004800393753A patent/CN101116346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064959A (en) * | 2018-08-01 | 2018-12-21 | 合肥惠科金扬科技有限公司 | A kind of display device and display methods |
| CN109064959B (en) * | 2018-08-01 | 2023-12-19 | 合肥惠科金扬科技有限公司 | Display device and display method |
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