CN103581649A - Naked eye three-dimensional image display device and method - Google Patents
Naked eye three-dimensional image display device and method Download PDFInfo
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- CN103581649A CN103581649A CN201310493378.5A CN201310493378A CN103581649A CN 103581649 A CN103581649 A CN 103581649A CN 201310493378 A CN201310493378 A CN 201310493378A CN 103581649 A CN103581649 A CN 103581649A
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Abstract
The invention discloses a naked eye three-dimensional image display device and method. The device comprises a signal acquisition module, a stereoscopic signal module, a display screen, an infrared distance measurement sensor, a control module and a grating drive module. The display screen is connected with the signal acquisition module, the stereoscopic signal module, the control module and the grating drive module through a data bus. The infrared distance measurement sensor is connected with the control module and the grating drive module. According to the method, the infrared distance measurement sensor is utilized to acquire distance signals between a user and a liquid crystal slit grating, the control module controls the interval between the liquid crystal slit grating and a two-dimensional liquid crystal displayer according to the distance signals, the grating drive module controls the state of the liquid crystal slit grating according to the distance signals, then, the displayer displays three-dimensional images, and the user can see the three-dimensional images at different distances from the liquid crystal slit grating.
Description
Technical field
The invention belongs to electronic technology field, further relate to bore hole three-dimensional image display apparatus and method in a kind of photoelectric display technical field.The present invention can be used for the demonstration of bore hole 3-dimensional image.
Background technology
Current modal bore hole dimension display technologies is grating dimension display technologies.The grating three dimensional display of making according to grating dimension display technologies is because its advantage such as simple in structure, cheap, functional receives much concern.But existing grating three dimensional display needs user to arrive best three-dimensional display effect in certain ad-hoc location ability ornamental, can not automatically adjust to guarantee that user can watch best three-dimensional display effect according to the distance of user distance display screen, if thereby user cannot not watch the good 3-dimensional image of effect in ad-hoc location, this has limited the use of bore hole three dimensional display greatly.
The patent application " a kind of Glassless 3D display control program and method " (number of patent application CN201110257480.6, publication number CN102970550) that HUMANTEC Industrial Systems Co., Ltd proposes discloses a kind of Glassless three-dimensional display control system and method.This system comprises: eye recognition and locating module, control module and apart from detection module.This patent application also discloses a kind of method, and the method judges user's viewing distance by range sensor, if this distance is not suitable for watching 3-dimensional image, system can on screen, occur prompting user this how to move, to watch best 3-dimensional image.Although this system architecture is simple, be easy to realize, the weak point still existing is: it is fixing that user watches the best of 3-dimensional image to view and admire distance, inapplicablely than the best, is viewing and admiring the 3-dimensional image of watching apart from farther or nearer place.In addition, although this patent application method can point out user to move, the weak point still existing is: the degree of freedom moving due to user is large, is difficult to guarantee that user accurately moves to best viewing location.
The patent application " bore hole 3D image display and method " (number of patent application CN201110246570.5, publication number CN102655596) that Jingdongfang Photoelectric Science & Technology Co., Ltd., Beijing proposes discloses a kind of bore hole three-dimensional image display apparatus and method.This device comprises: 2D/3D transducer, depth of field processing and control module, infrared induction module and display screen.The implementation step of the method is: step 1, the distance of infrared induction module induction user and display screen; Step 2, infrared induction module sends to depth of field processing and control module by this range data; Step 3, depth of field processing and control module is carried out depth of field processing according to range data to three dimensional signal, user can be watched be equal to be positioned at the best view and admire apart from time appreciation effect.Although this device has solved user must be apart from the problem of display screen specific range, the weak point still existing is: due to complex structure, need a plurality of displays, cause the expense of resource large.In addition, although this patent application method has solved the separated problem of 3 D stereo signal, the weak point still existing is: method for processing scene depth is too loaded down with trivial details, and the real-time of 3 D stereo signal is difficult to guarantee.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, a kind of bore hole three-dimensional image display apparatus and method are provided, according to the distance of user and liquid crystal slit grating, change the spacing of bidimensional image display and liquid crystal slit grating, thereby make user in watching the best of 3-dimensional image to view and admire distance.
For achieving the above object, the present invention is by the following technical solutions:
A three-dimensional image display apparatus, comprises signal acquisition module, three-dimensional signal module, display screen, infrared distance sensor, control module and six modules of grating driver module; Described display screen connects respectively signal acquisition module, three-dimensional signal module, control module, grating driver module by bus; Described infrared distance sensor is connected with grating driver module with control module respectively; Wherein, described signal acquisition module, for gathering bidimensional image signal; Described three-dimensional signal module, for being converted to stereoscopic image signals by bidimensional image signal; Described display screen, is comprised of bidimensional image display and liquid crystal slit grating, and bidimensional image display is connected by guide rail with liquid crystal slit grating, for showing stereoscopic image signals separated stereoscopic image signals; Described infrared distance sensor, for responding to the distance between user and liquid crystal slit grating, and sends to control module by this distance signal; Described control module, is comprised of arithmetic element and driver, and for controlling the spacing between bidimensional image display and liquid crystal slit grating, driver is connected with bidimensional image display by power transmission shaft; Described grating driver module, for driving liquid crystal slit grating.
As the preferred embodiments of the present invention, described liquid crystal slit grating is fixed on guide rail near one end of user; Described bidimensional image display is liquid crystal display.
As the preferred embodiments of the present invention, each row grating of described liquid crystal slit grating is a raster unit, every N adjacent raster unit is a grating group, the span of N is the integer in 1～8, each raster unit in grating group has different liquid crystal slit grating states, and the liquid crystal slit grating state of each grating group is identical.
As the preferred embodiments of the present invention, described control module is fixed on the rear end of guide rail; Described arithmetic element is connected with driver by bus.
As the preferred embodiments of the present invention, described grating driver module comprises logical block, memory cell and lcd drive chip, cell stores look-up table; Described logical block is connected with lcd drive chip with memory cell respectively by bus.
As the preferred embodiments of the present invention, described infrared distance sensor is placed on the point midway of the module frame horizontal frame of display unit.
A kind of bore hole 3-dimensional image display packing, utilize the distance D between infrared distance sensor induction user and liquid crystal slit grating, then this distance is sent to control module and grating driver module, the spacing G between bidimensional image display and liquid crystal slit grating is calculated and adjusted to described control module according to formula: G=P*D/E, wherein, P represents the pel spacing of display panels, and E represents the spacing between two of users; Described grating driver module is searched the liquid crystal slit grating state value corresponding with this distance D according to user with the distance D between liquid crystal slit grating in look-up table, lcd drive chip drives liquid crystal slit grating according to liquid crystal slit grating state value, finally according to the spacing of the bidimensional image display after adjusting and liquid crystal slit grating and liquid crystal slit grating state, shows 3-dimensional image.
As the preferred embodiments of the present invention, the concrete steps of described bore hole 3-dimensional image display packing are: (1) gathers distance signal: 1a) infrared distance sensor is launched infrared signal to user, receive the infrared signal being reflected by user; 1b) infrared distance sensor obtains the distance signal between user and liquid crystal slit grating from received infrared signal; (2) infrared distance sensor sends to control module and grating driver module by distance signal: (3) space distance control: 3a) control module receives the distance signal that infrared distance sensor sends; 3b) arithmetic element is utilized formula G=P*D/E, obtain the spacing of bidimensional image display and liquid crystal slit grating, wherein, G represents the spacing of bidimensional image display and liquid crystal slit grating, P represents the pel spacing of display panels, D represents the distance signal between liquid crystal slit grating and user, and E represents the spacing between two of users; 3c) driver by power transmission shaft control bidimensional image display on guide rail according to step 3b) the bidimensional image display that obtains and the spacing of liquid crystal slit grating move; (4) state of a control: 4a) grating driver module receives the distance signal that infrared distance sensor sends; 4b) logical block is searched the liquid crystal slit grating state value corresponding with distance signal in look-up table; 4c) lcd drive chip drives liquid crystal slit grating according to liquid crystal slit grating state value; (5) show 3-dimensional image: spacing and liquid crystal slit grating state according to bidimensional image display after adjusting and liquid crystal slit grating, show 3-dimensional image.
As the preferred embodiments of the present invention, described liquid crystal slit grating state value is 0 and 1,0 expression liquid crystal slit grating closure state, and 1 represents liquid crystal slit grating opening.
The present invention compared with prior art has the following advantages:
First, the present invention adopts control module, power transmission shaft and guide rail are realized the movement of bidimensional image display, changed the spacing of bidimensional image display and liquid crystal slit grating, thereby realized best variation of viewing and admiring distance, overcome in prior art the best when user views and admires 3-dimensional image and view and admire the fixing deficiency of distance, the invention enables user to watch 3-dimensional image in different distances, facilitating user to view and admire 3-dimensional image (that is to say, background technology is that prompting user oneself adjusts viewing location, and the present invention realizes the best viewing location of adjustment by adjusting the spacing of bidimensional image display and liquid crystal slit grating).
Second, the present invention adopts by changing the spacing of liquid crystal slit grating and bidimensional image display and changes the method that the best is viewed and admired distance, make user all in the best, view and admire distance when viewing and admiring 3-dimensional image, overcome the deficiency that user can only view and admire 3-dimensional image a fixing distance, improved the degree of freedom that user views and admires 3-dimensional image.
Accompanying drawing explanation
Fig. 1 is the block diagram of apparatus of the present invention;
Fig. 2 is the flow chart of the inventive method.
Embodiment
With reference to accompanying drawing 1, apparatus of the present invention comprise signal acquisition module, three-dimensional signal module, display screen, infrared distance sensor, control module and six modules of grating driver module.Display screen connects respectively signal acquisition module, three-dimensional signal module, control module, grating driver module by data/address bus, and infrared distance sensor is connected with grating driver module with control module respectively.
Signal acquisition module is for gathering bidimensional image signal from database, and signal acquisition module adopts a block signal acquisition chip, and signals collecting chip is Real-time Collection signal from database, by data/address bus, the signal collecting is transferred to three-dimensional signal module.
Three-dimensional signal module is converted to stereoscopic image signals for the bidimensional image signal that signal acquisition module is transmitted, and three-dimensional signal is arrived to display screen by bus transfer.In three-dimensional signal module, comprised the chip that bidimensional image signal is converted to 3 D stereo signal.In embodiments of the present invention, the chip of 3 D stereo signal adopts the real-time process chip of 2D/3D video conversion of Dialog semiconductor limited company, and model is DA8223.
Display screen comprises bidimensional image display and liquid crystal slit grating, be used for showing stereoscopic image signals separated stereoscopic image signals, liquid crystal slit grating is fixed on the front end of guide rail, bidimensional image display is connected by guide rail with liquid crystal slit grating, liquid crystal slit grating be positioned at bidimensional image display before, near user's a side; Wherein bidimensional image display is liquid crystal display, the grating parameter of liquid crystal slit grating is determined by the size of bidimensional image display, each row grating of liquid crystal slit grating is a raster unit, every N adjacent raster unit is a grating group, the span of N is the integer in 1～8, each raster unit in grating group has different liquid crystal slit grating states, and the liquid crystal slit grating state of each grating group is identical.In embodiments of the present invention, the value of N is 6, and every 6 adjacent raster units are a grating group.
Infrared distance sensor is placed on the point midway of the module frame horizontal frame of display unit, for responding to the user in display screen dead ahead and the distance between liquid crystal slit grating, infrared distance sensor is continuously to dead ahead transmitting infrared signal, and receive the infrared signal that user reflects, obtain distance signal, and this distance signal is sent to control module and grating driver module.
Control module is comprised of arithmetic element and driver, for controlling the spacing between bidimensional image display and liquid crystal slit grating, control module is fixed on the rear end of guide rail, arithmetic element is connected with driver by bus, driver is connected with bidimensional image display by power transmission shaft, control module receives the distance signal that infrared distance sensor sends over, drive driver to make telescopic transmission shaft, mobile bidimensional image display, thereby the spacing of control bidimensional image display and liquid crystal slit grating.
Grating driver module is used for driving liquid crystal slit grating, and grating driver module comprises logical block, memory cell and lcd drive chip, cell stores look-up table, and logical block is connected with lcd drive chip with memory cell respectively by bus.Grating driver module receives the distance signal that infrared distance sensor sends over, and drives lcd drive chip work, controls the state of liquid crystal slit grating, realizes user apart from the different distance of liquid crystal slit grating, can clearly watch 3-dimensional image.
Below in conjunction with accompanying drawing 2, method of the present invention is described further.
Step 1, gathers distance signal.
Infrared distance sensor is launched infrared signal to the user who is positioned at display screen dead ahead constantly, and receiving the infrared signal reflecting from user with it, infrared distance sensor obtains the distance signal of user and liquid crystal slit grating according to the infrared signal reflecting.
Step 2, transmission range signal.
Infrared distance sensor sends to control module and grating driver module by distance signal.
Step 3, space distance control.
Control module receives the distance signal that infrared distance sensor sends over, and the arithmetic element of control module is utilized following formula, controls the spacing of bidimensional image display and liquid crystal slit grating:
G=P*D/E
Wherein, G represents the spacing of bidimensional image display and liquid crystal slit grating, and P represents the pel spacing of display panels, and D represents the distance signal between liquid crystal slit grating and user, and E represents two spacing of user.
Step 4, state of a control.
Grating driver module receives the distance signal that infrared distance sensor sends over, the logical block of grating driver module is searched the liquid crystal slit grating state value corresponding with distance signal in look-up table, liquid crystal slit grating state value has 0 and 1, wherein 0 represents liquid crystal slit grating closure state, the obstructed light of liquid crystal slit grating now, 1 represents liquid crystal slit grating opening, now the logical light of liquid crystal slit grating.Data in look-up table are data that people set in advance, each distance signal is corresponding one group of liquid crystal slit grating state value one by one, pass through distance signal, just be easy to obtain the state value of liquid crystal slit grating, lcd drive chip is controlled liquid crystal slit grating closure or opens according to the state value of liquid crystal slit grating, thereby make user apart from the different distance of liquid crystal slit grating, can clearly watch 3-dimensional image.
Step 5, shows 3-dimensional image.
Spacing and the liquid crystal slit grating state of adjusting bidimensional image display and liquid crystal slit grating, make apparatus of the present invention can show 3-dimensional image.
Claims (9)
1. a bore hole three-dimensional image display apparatus, is characterized in that: comprise signal acquisition module, three-dimensional signal module, display screen, infrared distance sensor, control module and six modules of grating driver module; Described display screen connects respectively signal acquisition module, three-dimensional signal module, control module, grating driver module by bus; Described infrared distance sensor is connected with grating driver module with control module respectively; Wherein,
Described signal acquisition module, for gathering bidimensional image signal;
Described three-dimensional signal module, for being converted to stereoscopic image signals by bidimensional image signal;
Described display screen, is comprised of bidimensional image display and liquid crystal slit grating, and bidimensional image display is connected by guide rail with liquid crystal slit grating, for showing stereoscopic image signals separated stereoscopic image signals;
Described infrared distance sensor, for responding to the distance between user and liquid crystal slit grating, and sends to control module by this distance signal;
Described control module, is comprised of arithmetic element and driver, and for controlling the spacing between bidimensional image display and liquid crystal slit grating, driver is connected with bidimensional image display by power transmission shaft;
Described grating driver module, for driving liquid crystal slit grating.
2. bore hole three-dimensional image display apparatus according to claim 1, is characterized in that, described liquid crystal slit grating is fixed on guide rail near one end of user; Described bidimensional image display is liquid crystal display.
3. bore hole three-dimensional image display apparatus according to claim 1, it is characterized in that, each row grating of described liquid crystal slit grating is a raster unit, every N adjacent raster unit is a grating group, the span of N is the integer in 1～8, each raster unit in grating group has different liquid crystal slit grating states, and the liquid crystal slit grating state of each grating group is identical.
4. bore hole three-dimensional image display apparatus according to claim 1, is characterized in that, described control module is fixed on the rear end of guide rail; Described arithmetic element is connected with driver by bus.
5. bore hole three-dimensional image display apparatus according to claim 1, is characterized in that, described grating driver module comprises logical block, memory cell and lcd drive chip, cell stores look-up table; Described logical block is connected with lcd drive chip with memory cell respectively by bus.
6. bore hole three-dimensional image display apparatus according to claim 1, is characterized in that, described infrared distance sensor is placed on the point midway of the module frame horizontal frame of display unit.
7. a bore hole 3-dimensional image display packing, it is characterized in that: utilize the distance D between infrared distance sensor induction user and liquid crystal slit grating, then this distance is sent to control module and grating driver module, the spacing G between bidimensional image display and liquid crystal slit grating is calculated and adjusted to described control module according to formula: G=P*D/E, wherein, P represents the pel spacing of display panels, and E represents the spacing between two of users; Described grating driver module is searched the liquid crystal slit grating state value corresponding with this distance D according to user with the distance D between liquid crystal slit grating in look-up table, lcd drive chip drives liquid crystal slit grating according to liquid crystal slit grating state value, finally according to the spacing of the bidimensional image display after adjusting and liquid crystal slit grating and liquid crystal slit grating state, shows 3-dimensional image.
8. bore hole 3-dimensional image display packing according to claim 7, is characterized in that: comprise the steps:
(1) gather distance signal:
1a) infrared distance sensor is launched infrared signal to user, receives the infrared signal being reflected by user;
1b) infrared distance sensor obtains the distance signal between user and liquid crystal slit grating from received infrared signal;
(2) infrared distance sensor sends to control module and grating driver module by distance signal;
(3) space distance control:
3a) control module receives the distance signal that infrared distance sensor sends;
3b) arithmetic element is utilized formula G=P*D/E, obtain the spacing of bidimensional image display and liquid crystal slit grating, wherein, G represents the spacing of bidimensional image display and liquid crystal slit grating, P represents the pel spacing of display panels, D represents the distance signal between liquid crystal slit grating and user, and E represents the spacing between two of users;
3c) driver by power transmission shaft control bidimensional image display on guide rail according to step 3b) the bidimensional image display that obtains and the spacing of liquid crystal slit grating move;
(4) state of a control:
4a) grating driver module receives the distance signal that infrared distance sensor sends;
4b) logical block is searched the liquid crystal slit grating state value corresponding with distance signal in look-up table;
4c) lcd drive chip drives liquid crystal slit grating according to liquid crystal slit grating state value;
(5) show 3-dimensional image:
Spacing and liquid crystal slit grating state according to bidimensional image display after adjusting and liquid crystal slit grating, show 3-dimensional image.
9. bore hole 3-dimensional image display packing according to claim 8, is characterized in that, described liquid crystal slit grating state value is 0 and 1,0 expression liquid crystal slit grating closure state, and 1 represents liquid crystal slit grating opening.
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Application publication date: 20140212 |