CN102073162B - Stereo display equipment and display method thereof - Google Patents
Stereo display equipment and display method thereof Download PDFInfo
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- CN102073162B CN102073162B CN 201010552580 CN201010552580A CN102073162B CN 102073162 B CN102073162 B CN 102073162B CN 201010552580 CN201010552580 CN 201010552580 CN 201010552580 A CN201010552580 A CN 201010552580A CN 102073162 B CN102073162 B CN 102073162B
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Abstract
The invention provides stereo display equipment for realizing a wide view angle by utilizing electronic scanning and a method thereof, wherein the equipment comprises an electronic scanner and a stereo liquid crystal display panel. The electronic scanner converts the received images into the corresponding image slicer control signals and image signals; the stereo liquid crystal display panel forms a stereo image with some position as the optimum view point after receiving the group of the signals; then, the electronic scanner outputs the image slicer control signals and the image signals of the same frame of images after translation; the stereo liquid crystal display panel receives the stereo image forming another position as the optimum view point after the translation; and the operations are repeated in this way, thus, the stereo image with every frame capable of being clearly watched in various positions can be formed.
Description
[technical field]
The present invention relates to the stereo display field, particularly about a kind of stereoscopic display device and method thereof that can realize wide viewing angle.
[background technology]
Stereo-liquid crystal display device can show stereo-picture.The beholder need not by any aid, and naked eyes directly can be watched the stereo-picture that has distinct depth just as three-dimensional film.The stereo-liquid crystal display device that possesses plane and three-dimensional compatible performance will substitute common liquid crystal display in most market spaces, might become the most promising direction of flat pannel display.Accordingly, the integrated mobile phone of stereo-liquid crystal display device, MP4, computer etc. will bring brand-new experience to the user.And will become in the near future the main flow in market.
As shown in Figure 1, stereoscopic display device utilizes specific mask algorithm according to parallax obstacle principle, will show the image cross arrangement, by catching observation by two behind the specific disparity barrier.Disparity barrier is accurately controlled the light that each pixel sees through by grating array (utilizing mole interference fringe diagnostic method accurately to be installed on the display liquid crystal panel), only allow right eye or left eye see, because right eye watches the angle of liquid crystal panel different with left eye, utilize this differential seat angle to cover light and just image can be distributed to right eye or left eye, through brain this two width of cloth is synthesized the image that a pair has spatial depth and dimensional information by the image of difference, thereby make the user without any need for helping the equipment of looking (as putting on the 3D glasses) can see 3D rendering.
As shown in Figure 2, in Practical Project is realized, because the image of two an eye line adjacents, can under automatism, be caught to read by left and right two and form so-called contrary look (superimposed image, distortion, black longitudinal grin), the eyes fatigue of very easily aching, so the user must could normally watch in the minimum angle, in other words, if do not adopt other technology auxiliary, the visible angle of stereo-liquid crystal display device is very little.
As shown in Figure 3, therefore develop head detection systems (head tracking system) in order to improve above-mentioned disappearance, utilize this detection system can detect at any time observer's head position, in case produce contrary display two images that read of switching right and left immediately when looking the field, not only can prevent thus the non-return generation of looking problem, can also enlarge the considerable scope of looking of three-dimensional element stereopsis.
Yet during actual use head portion detection system, each diamond-shaped area interface at position, A place of but finding Fig. 3 is very narrow, causes the user to experience the not good and eyes of the looking property of sight such as delicate superimposed image, distortion (crosstalk) and black longitudinal grin (moire) the tired minus effect of very easily aching.In view of this this system further made into as shown in Figure 4 by the movable head detection systems of electric drive type that liquid crystal consisted of.When if observer's head moves to interface zone, this Novel head detection system can detect immediately, move simultaneously the peristome of above-mentioned 3 D stereoscopic image dispenser, that is to say that it is to utilize detecting device to detect at any time, monitor observer's head position, and will detect result feedback to the Image Segmentation device, adjust, control shown left and right two image position on the liquid crystal display, utilize this new technology observer can watch the extremely wide 3 D stereoscopic image of scope.
By above-mentioned each figure and describe as can be known, head detection systems weakens even has eliminated the contrary of horizontal direction and looked effect, but the user still is limited in using in the certain distance (far and near direction), therefore is subject to extremely many restrictions using.Therefore must solve the contrary problem of looking on the far and near direction when using.
The 3 D visible scope of fore-and-aft direction that studies show that little picture on the horizontal direction is larger than the 3 D visible scope of large picture, and this is because the visual angle of little picture is smaller, and liquid crystal display and Image Segmentation device are not easy to produce so-called moire interference.As shown in Figure 5, utilize this physical phenomenon with liquid crystal display and Image Segmentation device, be divided into the exclusive zone of 16 equal portions control out of the ordinary by the electronics mode, in other words it can be for the peristome position with above-mentioned Image Segmentation device, user's position, and the image in the liquid crystal display is fine-tuning to appropriate state, so no matter far away, near, the user can watch 3 D stereoscopic image.According to the three-dimensional head detection systems (stereo head track) of liquid crystal display top the relevant observer's two-dimensional position data of detecting (front and back, about), simultaneously control is switching liquid crystal display images of left and right eyes image also, and the peristome position of Image Segmentation device, the observer beyond the stereoscopic viewing vision area is then carried out above-mentioned indivedual Image Segmentation control.
As shown in Figure 6, the control procedure of the existing liquid crystal display of cutting apart control is as follows:
(1) three-dimensional camera is caught the exact position (about, distance) of the relative camera of user, and with this data transmission to the head detection control circuit;
(2) these data of head detection control circuit foundation are carried out computing, calculate the actual exact position of watching of user;
(3) according to user's exact position, the head detection control circuit also calculates the adjustment parameter of peristome position simultaneously and parameter is adjusted in the position of left and right picture;
(4) according to the adjustment parameter of peristome position, the head detection control circuit has been readjusted the open and close that corresponding ITO is ordered in the liquid crystal display, to form the barrier of looking that needs;
(5) adjust parameter according to the position of left and right picture, the head detection control circuit has been readjusted the viewing area of left and right picture;
Analyzing above-mentioned control procedure as can be known, actual solve that user (about, distance) is contrary to look problem, is to form different stereoscopic vision scopes by adjusting ITO from the position of left and right picture.Popular says, is to finish by the picture ITO corresponding with it " translation ", and namely each " translation " position correspondence the viewing location (about, far and near direction) an of the best.The head detection controller calculates corresponding " translation " position according to the position of user's head.
By above-mentioned analysis, can see that there is following shortcoming in this technology:
(1) need high-performance camera and complicated optical system, this camera also must possess three-dimensional positioning function;
(2) need the head detection control circuit, this circuit must possess or depend on main frame (PC etc.) has powerful arithmetic capability just can calculate user's actual relative position;
(3) the position computing need to consume corresponding electric weight;
(4) above analytic process is take alone family as example, when watching for the multi-user, above-mentioned 3 requirement meeting is improved greatly.Even when surpassing main frame arithmetic capability and the regulation of electrical circuit ability, may cause the certain user to watch hydraulic performance decline.
When adopting the stereo-liquid crystal display device of said method improvement, for PC, LCD TV, the three-dimensional camera cost of increase, and computing cost and the power consumption of moving its software all are acceptables.But for portable sets such as mobile phone, MP4, the volume that increases, computing expense, power consumption etc. all are very huge.Therefore at present also rarely have the portable sets such as mobile phone, MP4 of stereo display to appear on the market or research and develop.
[summary of the invention]
The object of the present invention is to provide the stereoscopic display device of a kind of cost wide viewing angle low, simple in structure.
The object of the present invention is to provide the stereo display method of a kind of cost wide viewing angle low, simple in structure.
For reaching aforementioned purpose, a kind of stereoscopic display device of the present invention, it comprises:
Bus interface is used for receiving each frame stereoscopic image data;
Electronic scanner, reception is from each frame stereoscopic image data of bus interface, and after receiving a frame stereoscopic image data, ITO control signal and picture signal and the output of primitive frame is obtained in analysis, and according to the best viewing location quantity of default display device and the translation mode of presetting, ITO control signal and the picture signal of the stereoscopic image data export translation after the described stereoscopic image data of translation after are until travel through all best viewing location;
Three-dimensional display panels, ITO control signal, picture signal after original I TO control signal, picture signal and the translation of its reception electronic scanner output, and show stereo-picture, watch a little to form the best in all best viewing location.
Further, the mode of described electronic scanner translation view data is to the left or to the right translation one row image of each order.
Further, the mode of described electronic scanner translation view data is each translation m row image at random, wherein m greater than 0 less than best viewing location total quantity.
Further, the mode of described electronic scanner translation view data is for to make up translation according to program setting.
For reaching aforementioned another purpose, the display packing of a kind of stereoscopic display device of the present invention, it comprises:
Electronic scanner obtains ITO control signal and the picture signal of primitive frame through the stereoscopic image data analysis to receiving, and this group signal is exported in the three-dimensional display panels;
After three-dimensional display panels is received aforementioned one group of signal, control respectively ITO array and liquid crystal array, form the best at the primary importance place and watch a little;
After electronic scanner receives stereoscopic image data translation m row with institute, obtain same frame ITO control signal and picture signal after translation m is listed as, and this group signal sent in the three-dimensional display panels, wherein m is for greater than 0 any number less than or equal to best viewing location total quantity n;
Three-dimensional display panels is received one group of ITO control signal and the picture signal behind the translation m row, controls respectively ITO array and liquid crystal array, forms the best at second place place and watches a little.
Further, in the step of described translation m row, be to the left or to the right translation one row image of each order.
Further, in the step of described translation m row, be at every turn translation m row image at random, wherein m greater than 0 less than best viewing location total quantity.
Further, in the step of described translation m row, be to make up translation according to program setting.
3 D image display device of the present invention and method thereof, for each two field picture, mode by electron scanning travels through each the best and watches a little, then do not need additionally to arrange the camera that detects head, the spectators of the optional position before screen can both see the stereo-picture of each frame, its cost is lower, and computation process is simple.
[description of drawings]
Fig. 1 is the schematic diagram of existing three-dimensional display.
Fig. 2 is the synoptic diagram that there is contrary viewed area in existing three-dimensional display.
Fig. 3 is the existing synoptic diagram that utilizes head detection systems to enlarge the stereopsis visual zone.
Fig. 4 is the existing synoptic diagram that utilizes movable Image Segmentation device to enlarge the stereopsis visual zone.
Fig. 5 is the existing synoptic diagram that utilizes Image Segmentation device and image segmentation to enlarge the stereopsis visual zone.
Fig. 6 is the existing synoptic diagram that utilizes the liquid crystal display systems that image segmentation controls.
Fig. 7 is the structural representation of stereoscopic display device of the present invention.
Fig. 8 is the display packing process flow diagram of stereoscopic display device of the present invention.
Fig. 9 is stereoscopic display device picture of the present invention and Image Segmentation device translation synoptic diagram.
Figure 10 is the display effect synoptic diagram of stereoscopic display device of the present invention.
[embodiment]
Alleged " embodiment " or " embodiment " refer to be contained in special characteristic, structure or the characteristic at least one implementation of the present invention herein.Different local in this manual " in one embodiment " that occur not are all to refer to same embodiment, neither be independent or the embodiment mutually exclusive with other embodiment optionally.
Stereoscopic display device of the present invention replaces outside three-dimensional camera by the mode of electron scanning, eliminates against looking (superimposed image, distortion, black longitudinal grin), increases the visible angle of stereo-liquid crystal display device.
See also the structural representation of stereoscopic display device of the present invention shown in Figure 7.Stereoscopic display device 1 of the present invention comprises bus interface 11, electronic scanner 12 and three-dimensional display panels 13.
Wherein bus interface 11 is used for linking to each other with external host or master chip (not shown), is used for receiving stereoscopic image data and other various control signals, for example backlight control signal of liquid crystal panel from main frame or master chip.
For example, in one embodiment, electronic scanner 12 is at first exported ITO control signal and the picture signal of primitive frame after receiving a frame stereoscopic image data, then export same frame ITO control signal and picture signal behind the translation m row, wherein m is for greater than 0 numerical value less than n; Same frame ITO control signal and picture signal behind the last electronic scanner output translation n row.Then constantly repeat, until after the equal translation of all best viewing location, finish the output of a two field picture.
Three-dimensional display panels 13, its concrete structure can be with reference to earlier figures 1 and shown in Figure 5, and it comprises backlight module, Polarizer, glass substrate, ITO, photomask, Image Segmentation device etc.Concrete principle and detailed construction about three-dimensional display panels are the technology that those skilled in the art should know, the principle of the body fluid LCD panel that herein no longer opposes and detailed construction repeat specification.
ITO control signal and picture signal that three-dimensional display panels 13 receives after electronic scanner 12 conversions convert described signal to stereo-picture afterwards.
See also shown in Figure 8ly, it shows the process flow diagram of the display packing of stereo-picture equipment of the present invention.In the present embodiment, suppose that liquid crystal image is divided into the n row, total n the best watched a little in the liquid crystal display front, and the display packing of stereo-picture equipment of the present invention comprises:
Step S801: bus interface receives the frame stereoscopic image data from main frame or master chip, and it is sent in the electronic scanner; Wherein the data of bus interface reception not only comprise a frame stereoscopic image data, also comprise other signal, such as the signals such as control signal backlight of control liquid crystal display.
Step S802: electronic scanner obtains ITO control signal and the picture signal of primitive frame through the stereoscopic image data analysis to receiving, and this group signal is sent into respectively in the three-dimensional display panels.As shown in Figure 9, wherein this moment, image was the original image of 0 translation.
Step S803: three-dimensional display panels is controlled respectively ITO array and liquid crystal array after receiving this group signal, as shown in Figure 7, forms the best at position g place and watches a little.
Step S804: then electronic scanner is exported same frame ITO control signal and the picture signal behind the translation m row again, and this group signal is sent in the three-dimensional display panels, and wherein m is greater than 0 numerical value less than n.As shown in Figure 9, in its corresponding diagram+m row translation picture.
Step S805: as shown in Figure 7, three-dimensional display panels is received one group of ITO control signal and the picture signal behind the translation m row, controls respectively ITO array and liquid crystal array, and formation the best is watched a little at position i place.
Step S806: then electronic scanner is exported same frame ITO control signal and the picture signal after translation n is listed as again, and this group signal is sent among the three-dimensional display panels f.The picture of the translation n row in the corresponding diagram 9.
Step S807: as shown in Figure 7, three-dimensional display panels is received one group of ITO control signal and the picture signal behind the translation n row, controls respectively ITO array and liquid crystal array, and formation the best is watched a little at position h place.This moment, the demonstration of one two field picture was finished, and best observation station is by " traversal ", and all users in this combination n can both see this frame stereo-picture.
For each two field picture, can repeating step S801 to the process of step S807, then all spectators can both see the stereo-picture of each frame clearly before display.Wherein in abovementioned steps, because the m of translation row can be any row, can repeat multistep, if watch a little maximum quantity n if the m value among the step S805 is got the best, then in fact whole method can be simplified to be summarised as and include only step S801 to S805 and can travel through all the bests and watch a little.
As shown in figure 10,3 D image display device of the present invention and method thereof, for each two field picture, mode by electron scanning travels through each the best and watches a little, then do not need additionally to arrange the camera that detects head, the spectators of the optional position before screen can both see the stereo-picture of each frame, and its cost is lower, and computation process is simple.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that and be familiar with the scope that any change that the person skilled in art does the specific embodiment of the present invention does not all break away from claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (8)
1. stereoscopic display device, it comprises:
Bus interface is used for receiving each frame stereoscopic image data;
Electronic scanner, reception is from each frame stereoscopic image data of bus interface, and after receiving a frame stereoscopic image data, ITO control signal and picture signal and the output of primitive frame is obtained in analysis, and according to the best viewing location quantity of default display device and the translation mode of presetting, ITO control signal and the picture signal of the stereoscopic image data export translation after the described stereoscopic image data of translation after are until travel through all best viewing location;
Three-dimensional display panels, ITO control signal, picture signal after ITO control signal, picture signal and the translation of the primitive frame of its reception electronic scanner output, and show stereo-picture, watch a little to form the best in all best viewing location.
2. stereoscopic display device as claimed in claim 1 is characterized in that: the mode of described electronic scanner translation view data is each order translation one row image to the left or to the right.
3. stereoscopic display device as claimed in claim 1 is characterized in that: the mode of described electronic scanner translation view data is each translation m row image at random, wherein m greater than 0 less than best viewing location total quantity.
4. stereoscopic display device as claimed in claim 1, it is characterized in that: the mode of described electronic scanner translation view data is for to make up translation according to program setting.
5. the display packing of a stereoscopic display device, it comprises:
Receive a frame stereoscopic image data, it is sent in the electronic scanner;
Electronic scanner obtains ITO control signal and the picture signal of primitive frame through the stereoscopic image data analysis to receiving, and this group signal is exported in the three-dimensional display panels;
After three-dimensional display panels is received aforementioned one group of signal, control respectively ITO array and liquid crystal array, form the best at the primary importance place and watch a little;
After electronic scanner receives stereoscopic image data translation m row with institute, obtain same frame ITO control signal and picture signal after translation m is listed as, and this group signal sent in the three-dimensional display panels, wherein m is for greater than 0 any number less than or equal to best viewing location total quantity n;
Three-dimensional display panels is received one group of ITO control signal and the picture signal behind the translation m row, controls respectively ITO array and liquid crystal array, forms the best at second place place and watches a little.
6. the display packing of stereoscopic display device as claimed in claim 5 is characterized in that: in the step of described translation m row, be to the left or to the right translation one row image of each order.
7. the display packing of stereoscopic display device as claimed in claim 5 is characterized in that: in the step of described translation m row, be at every turn translation m row image at random, wherein m greater than 0 less than best viewing location total quantity.
8. the display packing of stereoscopic display device as claimed in claim 5 is characterized in that: in the step of described translation m row, be to make up translation according to program setting.
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| CN102868894A (en) * | 2011-07-05 | 2013-01-09 | 天马微电子股份有限公司 | Full-visual angle 3D display image output method, device and display equipment |
| TWI463181B (en) * | 2012-09-25 | 2014-12-01 | Au Optronics Corp | Autostereoscopic display system and control method thereof |
| CN102970574A (en) * | 2012-11-21 | 2013-03-13 | 深圳市酷开网络科技有限公司 | Eyeglass-based 3D (3-Dimensional) intelligent terminal and system |
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| CN101604511A (en) * | 2008-06-11 | 2009-12-16 | 胜华科技股份有限公司 | The driving method of three-dimensional display |
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| CN202014339U (en) * | 2010-11-19 | 2011-10-19 | 无锡中星微电子有限公司 | Stereo display device |
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| CN101604511A (en) * | 2008-06-11 | 2009-12-16 | 胜华科技股份有限公司 | The driving method of three-dimensional display |
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| 姜盈等.真三维立体显示系统中平移体扫描技术研究.《计算机应用》.2006,(第01期), * |
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Address after: 214028 Jiangsu New District of Wuxi, Taihu international science and Technology Park Jia Qing 530 building 10 layer Patentee after: WUXI ZHONGGAN MICROELECTRONIC CO., LTD. Address before: 214028 Jiangsu New District of Wuxi, Taihu international science and Technology Park Jia Qing 530 building 10 layer Patentee before: Wuxi Vimicro Co., Ltd. |