CN102196293A - Stereoscopic display - Google Patents
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- CN102196293A CN102196293A CN2011101748321A CN201110174832A CN102196293A CN 102196293 A CN102196293 A CN 102196293A CN 2011101748321 A CN2011101748321 A CN 2011101748321A CN 201110174832 A CN201110174832 A CN 201110174832A CN 102196293 A CN102196293 A CN 102196293A
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Abstract
The invention discloses a stereoscopic display which comprises a display panel, a controller for glasses, an image controller and a backlight controller, wherein the display panel is divided into N blocks; the controller for the glasses is used to control open and close of a left glass and a right glass; the image controller is used to generate an image data enable signal; the backlight controller is used to control open and close of each block backlight; the display panel receives a left eye image signal, a right eye image signal, a left eye backlight signal and a right eye backlight signal and displays a left eye picture or a right eye picture based on these signals. In the invention, a region type backlight is adopted, the synchronization of backlight and liquid crystal display scanning is utilized and the problem of left and right images interference (Corsstalk) of the stereoscopic display is solved without increasing circuit cost; as the backlight of the display disclosed by the invention can be lightened when opening the glasses (the left glass or right glass), therefore, the service efficiency of the backlight is higher than that of the traditional on-and-off glass type stereoscopic display with a constant light of backlight and the power consumption can be saved.
Description
Technical field
The invention belongs to the display technology field, particularly a kind of three-dimensional display.
Background technology
The three-dimensional display technology can be divided into space formula and time formula according to display mode, the image with right and left eyes shows simultaneously in the same time for the former, and separate the image that right and left eyes can be seen in different ways, and the latter sends the right and left eyes image under different time, the former shortcoming is for the resolution that reduce to show and isolate that the right and left eyes mode is not good easily to cause the image of right and left eyes interfering with each other (being called Crosstalk), the latter's shortcoming is for light owing to backlight always, therefore when glasses cut out, institute backlight power consumed was invalid; And because LCD adopts the mode of vertical scanning, so the liquid crystal reaction can't be synchronous with glasses, causes the interference (Crosstalk) of right and left eyes image.Conventional switch formula glasses stereo display technique, be time formula stereo display technique, backlight continuing lighted when picture showed, the LCD image Data Update is adopted the from top to bottom mode of scanning, when image data update is finished, just monolateral glasses are opened, made left eye see that left-eye image, right eye see eye image, but because the liquid crystal reaction needed time, therefore the panel below still unreacted cause the simple eye image of seeing right and left eyes with the time to due image.
The time formula stereo display technique that nVIDA company is adopted (being called Shutter Glasses 3D), at first step 1 can be processed into every picture left eye figure and right eye figure, therefore the picture frame turnover rate can become 120 of per seconds by 60 of per seconds, purpose is that general picture conversion is become the right and left eyes picture, step 2 is exported picture in regular turn, alternately output of left eye figure and right eye figure during output, step 3 is that left eye figure or right eye figure are with the anaglyph spectacles switch according to the output picture, the glasses left side is opened glasses the right and is closed when output is left eye figure, the glasses left side is closed glasses the right and is opened when output is right eye figure, because the effect that human eye vision persists, the picture of experiencing through optic nerve just can present third dimension.
Fig. 1 shows the driving sequential of Shutter Glasses 3D display mode, left eye figure is a triangle among the figure, right eye figure is a square, the image input signal is imported the left eye diagram data at the beginning, panel receives after the data from top to bottom frame update, because LCD adopts the vertical scanning mode, the image (right eye figure) of the remaining previous picture frame of meeting during frame update, can continue the time (any data of not bothering to see me out this moment) of one section Blanking (frame period) face to face after project finishes as Data Update, this moment, frame updating finished, picture is entirely left eye figure, open when Blanking on the glasses left side so people's left eye is watched left eye figure, Blanking finishes back image signal input right eye figure, panel output this moment picture exists left eye figure and right eye figure, therefore glasses the right and left is all closed, treating that picture upgrades to finish enters Blanking after the time, panel output picture is entirely right eye figure, the right eye that makes the people is opened on glasses the right seen right eye figure, order repeats human eye and can watch stereopsis according to this.
Fig. 1 is desirable driving sequential, but prerequisite is to be zero just can satisfy in the reaction time of LCD, liquid crystal reaction needed time during practical operation (about 10～20 milliseconds), because panel is new data more from top to bottom, when entering the Blanking time, panel below liquid crystal all unreacted is finished, Fig. 2 is the from top to bottom waveform of liquid crystal real reaction of panel, red line is desirable drive waveforms among the figure, the liquid crystal reaction can reach 99% in Blanking time panel top, and the liquid crystal reaction can reach 85% in the middle of the panel, and the liquid crystal reaction of panel below only reaches 55%, so the image (as shown in Figure 3) of the remaining last picture of panel below meeting, this phenomenon is called interference (Crosstalk).
Summary of the invention
Goal of the invention:, the purpose of this invention is to provide a kind of three-dimensional display that solves the interference defective that is produced under the conventional ADS driving mode at the problem and shortage of above-mentioned existing existence.
Technical scheme: for achieving the above object, the technical solution used in the present invention is a kind of three-dimensional display, comprising:
Display floater, this display floater are divided into the block that the N piece can independently be controlled briliancy, and wherein N is not less than 2 integer, according to liquid crystal panel scanning by the order after arriving first, be followed successively by first block, second block ..., the N block;
Eyewear controller is used to control the switching of left side glasses and the right glasses, and when left side glasses cut out, the right glasses were opened, and when the right glasses cut out, left side glasses were opened;
Image controller is used to produce the image data enable signal, and this image data enable signal is exported the left-eye image signal successively, do not exported any signal, output eye image signal, and order repeats according to this;
Backlight controller, be used to control the switching backlight of each block, wherein backlight the writing at image data of first block lighted after the reaction of liquid crystal and liquid crystal is finished, the time of the time that described image data writes to backlight lightening is called the reaction time, the main purpose in this reaction time is to allow liquid crystal react to stable state, after the reaction time, enter backlight holding time, the time span that this time span kept backlight and image controller are not exported any signal at every turn is roughly suitable, enter the reaction time again after backlight holding time, order repeats according to this; Second block, the 3rd block ..., the N block backlight hold time respectively postpone than a last block, the time of described delay is the time difference that two adjacent region piece image datas write liquid crystal;
Described display floater receives described left-eye image signal, eye image signal, left eye backlight signal and right eye backlight signal and shows a left eye picture or a right eye picture in view of the above.
The time that described the right and left glasses are once opened can be about equally with the time of once closing.
Described left side glasses once open and time of once closing and can be no less than 2 times of the reaction time with the sum of holding time backlight.
Described the right and left glasses are opening and closing backlight can all the cutting out the very first time of switching the moment All Ranges.
The time of the time of described output left-eye image signal or output eye image signal and the time sum of not exporting any signal can be roughly time that the right and left glasses once open or the time of once closing.
Beneficial effect: the present invention adopts region-type backlight, utilizes the synchronous of backlight and LCD scanning, under the situation that does not increase circuit cost, improves the problem of three-dimensional display left and right sides image disruption (Crosstalk); Because the present invention is backlight only just to light when opening in glasses (left side glasses or the right glasses), therefore service efficiency backlight is high than the permanent bright switch eyeglass stereoscopic display of traditional backlight, has saved power consumption.
Description of drawings
Fig. 1 is the driving sequential schematic diagram of Shutter Glasses 3D display mode;
Fig. 2 is the actual liquid crystal response waveform of a panel schematic diagram;
Fig. 3 is for producing the image of Crosstalk;
Fig. 4 is the present invention's configuration diagram backlight;
Fig. 5 is a drive waveforms schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
The present invention at first is divided into the block that polylith can independently be controlled briliancy with backlight, backlight can be cold-cathode tube (CCFL) or LED, present embodiment is divided into eight blocks (as shown in Figure 4) with LED-backlit, but can comply with actual behaviour in service (for example panel size, fluorescent tube number, a LED number) and change.
Fig. 5 draws the liquid crystal response waveform in corresponding each district backlight, and the backlight lightening sequential that has each to distinguish, by finding out among the figure owing to panel is adopted the mode of scanning from top to bottom, all can postpone in more last district when therefore respectively distinguishing the liquid crystal reaction, be that the image signal transmission time is divided by block counts this time of delay (Tdelay), backlightly when the liquid crystal stable reaction, light and respectively distinguish, the time that image data writes to backlight lightening is Tresponse (reaction time), the time that backlight lightening is kept is Thold (backlight holding time), every district backlight lightening time delay Tdelay, make the liquid crystal reaction with backlight synchronous, Tstop is All Ranges time of all closing backlight (being the very first time in the claim), time described above all can be done slightly according to the driving situation and be adjusted, the switch that can find out glasses among the figure is 50%, this point is and the maximum different characteristics of prior art, because the optics switching has the reaction time during glasses switch, therefore the Tstop purpose is switched moment with all backlight closing for avoiding the right and left glasses in switch, avoiding taking place the phenomenon of Crosstalk, this Tstop also is the difference place with previous scanning backlight maximum.
The display mode of three-dimensional display can be divided into space formula and time formula on the market at present, the shortcoming of space formula three-dimensional display is for reducing the resolution that panel shows, the shortcoming of time formula three-dimensional display is then disturbed for reducing briliancy and image sense, the this patent motion adopts time formula stereo display to drive, disturb and promote the panel briliancy for improving image, the backlight of region-type adopted in this patent motion, by the reaction of backlight and liquid crystal synchronously, can make the interference of human eye impression less than stereopsis, this region-type employing pulse wave backlight formula drives, if adopt LED to drive, under identical LED prerequisite in useful life, can strengthen LED moment drive current to increase the panel briliancy, the three-dimensional framework that drives of traditional time formula, because the bright mode of perseverance of adopting backlight is lit a lamp, therefore when anaglyph spectacles is closed, institute backlight power consumed all is invalid, therefore the panel briliancy that this patent motion provided under the equal-wattage consumption is height than traditional approach, and pulse wave formula backlight drive can be improved the shortcoming of liquid crystal panel image smear, time formula three-dimensional display adopts region-type to overdrive to improve image to disturb mostly on the market at present, but the shortcoming of this mode is the image interference that reduces the panel briliancy and can't improve the panel below, utilizes this patent motion thoroughly to overcome the above problems.
Claims (5)
1. a three-dimensional display is characterized in that, comprising:
Display floater, this display floater are divided into the block that the N piece can independently be controlled briliancy, and wherein N is not less than 2 integer, according to liquid crystal panel scanning by the order after arriving first, be followed successively by first block, second block ..., the N block;
Eyewear controller is used to control the switching of left side glasses and the right glasses, and when left side glasses cut out, the right glasses were opened, and when the right glasses cut out, left side glasses were opened;
Image controller is used to produce the image data enable signal, and this image data enable signal is exported the left-eye image signal successively, do not exported any signal, output eye image signal, and order repeats according to this;
Backlight controller, be used to control the switching backlight of each block, wherein backlight the writing at image data of first block lighted after the reaction of liquid crystal and liquid crystal is finished, the time that described image data writes to backlight lightening is called the reaction time, after the reaction time, enter backlight holding time, the time span that this time span kept backlight and image controller are not exported any signal at every turn is roughly suitable, enters the reaction time again after backlight holding time, and order repeats according to this; Second block, the 3rd block ..., the N block backlight hold time respectively postpone than a last block, the time of described delay is the time difference that two adjacent region piece image datas write liquid crystal;
Described display floater receives described left-eye image signal, eye image signal, left eye backlight signal and right eye backlight signal and shows a left eye picture or a right eye picture in view of the above.
2. according to the described three-dimensional display of claim 1, it is characterized in that: time that described the right and left glasses are once opened and the time of once closing are about equally.
3. according to claim 1 or 2 described three-dimensional displays, it is characterized in that: described left side glasses once open and time of once closing and be no less than 2 times of the reaction time with the sum of holding time backlight.
4. according to the described three-dimensional display of claim 3, it is characterized in that: described the right and left glasses are opening and closing backlight all the cutting out the very first time of switching the moment All Ranges.
5. according to the described three-dimensional display of claim 2, it is characterized in that: the time of the time of described output left-eye image signal or output eye image signal and the time sum of not exporting any signal are roughly time that the right and left glasses once open or the time of once closing.
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| CN2011101748321A CN102196293A (en) | 2011-06-27 | 2011-06-27 | Stereoscopic display |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497561A (en) * | 2011-11-16 | 2012-06-13 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3D (three dimensional) display |
| CN102547361A (en) * | 2012-02-09 | 2012-07-04 | 华映视讯（吴江）有限公司 | Stereo image display system and method |
| CN102572496A (en) * | 2011-12-30 | 2012-07-11 | 四川长虹电器股份有限公司 | Ghost image elimination method for shutter type three-dimensional (3D) liquid crystal television |
| CN102750922A (en) * | 2012-07-05 | 2012-10-24 | 青岛海信电器股份有限公司 | Method and device for driving liquid crystal display, and liquid crystal television |
| CN102857780A (en) * | 2012-09-11 | 2013-01-02 | 青岛海信电器股份有限公司 | Control method and device for improving light transmittance of 3D (three-dimensional) television |
| CN103118264A (en) * | 2011-11-17 | 2013-05-22 | 上海中航光电子有限公司 | Backlight control method of three dimensional (3D) liquid crystal display device |
| WO2013071640A1 (en) * | 2011-11-16 | 2013-05-23 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3d display |
| WO2013155732A1 (en) * | 2012-04-19 | 2013-10-24 | 深圳市华星光电技术有限公司 | Stereoscopic display device and display control method therefor |
| CN103731650A (en) * | 2012-10-16 | 2014-04-16 | 群康科技(深圳)有限公司 | Stereo display device and control method thereof |
| TWI475529B (en) * | 2012-01-30 | 2015-03-01 | Chunghwa Picture Tubes Ltd | Stereoscopic display system and method |
| CN109166536A (en) * | 2018-11-07 | 2019-01-08 | 惠科股份有限公司 | Brightness adjusting method, brightness control system and the display system of display system |
| CN109166534A (en) * | 2018-11-07 | 2019-01-08 | 惠科股份有限公司 | Brightness adjusting method, brightness control system and the display system of display system |
| CN113362776A (en) * | 2021-06-30 | 2021-09-07 | 北京京东方光电科技有限公司 | Field sequence display device, control method and display equipment |
| WO2024032126A1 (en) * | 2022-08-09 | 2024-02-15 | 惠州Tcl移动通信有限公司 | 3d display technique-based backlight control method and apparatus, medium, and device |
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| WO2013071641A1 (en) * | 2011-11-16 | 2013-05-23 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3d display |
| CN102497561A (en) * | 2011-11-16 | 2012-06-13 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3D (three dimensional) display |
| CN102497561B (en) * | 2011-11-16 | 2013-11-13 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3D (three dimensional) display |
| WO2013071640A1 (en) * | 2011-11-16 | 2013-05-23 | 深圳市华星光电技术有限公司 | Working method of shutter glasses type 3d display |
| CN103118264B (en) * | 2011-11-17 | 2015-09-16 | 上海中航光电子有限公司 | A kind of method for controlling backlight thereof of 3D liquid crystal display |
| CN103118264A (en) * | 2011-11-17 | 2013-05-22 | 上海中航光电子有限公司 | Backlight control method of three dimensional (3D) liquid crystal display device |
| CN102572496A (en) * | 2011-12-30 | 2012-07-11 | 四川长虹电器股份有限公司 | Ghost image elimination method for shutter type three-dimensional (3D) liquid crystal television |
| US8988339B2 (en) | 2012-01-30 | 2015-03-24 | Chunghwa Picture Tubes Ltd. | Stereoscopic image displaying system and method |
| TWI475529B (en) * | 2012-01-30 | 2015-03-01 | Chunghwa Picture Tubes Ltd | Stereoscopic display system and method |
| CN102547361A (en) * | 2012-02-09 | 2012-07-04 | 华映视讯（吴江）有限公司 | Stereo image display system and method |
| CN102547361B (en) * | 2012-02-09 | 2014-04-02 | 华映视讯（吴江）有限公司 | Stereo image display system and method |
| WO2013155732A1 (en) * | 2012-04-19 | 2013-10-24 | 深圳市华星光电技术有限公司 | Stereoscopic display device and display control method therefor |
| CN102750922A (en) * | 2012-07-05 | 2012-10-24 | 青岛海信电器股份有限公司 | Method and device for driving liquid crystal display, and liquid crystal television |
| CN102750922B (en) * | 2012-07-05 | 2015-07-01 | 青岛海信电器股份有限公司 | Method and device for driving liquid crystal display, and liquid crystal television |
| CN102857780A (en) * | 2012-09-11 | 2013-01-02 | 青岛海信电器股份有限公司 | Control method and device for improving light transmittance of 3D (three-dimensional) television |
| CN103731650A (en) * | 2012-10-16 | 2014-04-16 | 群康科技(深圳)有限公司 | Stereo display device and control method thereof |
| CN109166536A (en) * | 2018-11-07 | 2019-01-08 | 惠科股份有限公司 | Brightness adjusting method, brightness control system and the display system of display system |
| CN109166534A (en) * | 2018-11-07 | 2019-01-08 | 惠科股份有限公司 | Brightness adjusting method, brightness control system and the display system of display system |
| CN109166536B (en) * | 2018-11-07 | 2020-11-24 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN113362776A (en) * | 2021-06-30 | 2021-09-07 | 北京京东方光电科技有限公司 | Field sequence display device, control method and display equipment |
| WO2024032126A1 (en) * | 2022-08-09 | 2024-02-15 | 惠州Tcl移动通信有限公司 | 3d display technique-based backlight control method and apparatus, medium, and device |
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Application publication date: 20110921 |