CN111741282A - Method for realizing 3D effect by combining display screen with shutter 3D glasses - Google Patents
Method for realizing 3D effect by combining display screen with shutter 3D glasses Download PDFInfo
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- CN111741282A CN111741282A CN202010719200.8A CN202010719200A CN111741282A CN 111741282 A CN111741282 A CN 111741282A CN 202010719200 A CN202010719200 A CN 202010719200A CN 111741282 A CN111741282 A CN 111741282A
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- shutter
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- effect
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
- H04N13/125—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues for crosstalk reduction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a method for realizing a 3D effect by combining a display screen with shutter 3D glasses, which comprises the following steps: step S001, selecting a liquid crystal screen with the height of over 120HZ, a 3D display driving board and shutter 3D glasses; after receiving the HDM, VGA or DP signals, the 3D display driving board processes the HDM, VGA or DP signals into 120HZ 3D signals, and then sends the 3D signals to a liquid crystal display screen above 120HZ, so that 60HZ pictures can be obtained on the left and right of the liquid crystal display screen; through a 3D display driving board, after a given 120HZ video signal is received, a 60HZ square wave synchronization signal is simultaneously output to the shutter 3D glasses, and the shutter 3D glasses perform switching control on the left and right eye glasses according to the given square wave synchronization signal, so that different images can be seen by the left and right eyes.
Description
Technical Field
The invention relates to the technical field of 3D, in particular to a method for realizing a 3D effect by combining a display screen with shutter 3D glasses.
Background
At present, virtual reality 3D application products in the market are full of glans, and since the first three-dimensional movie "train arrival" in 1903 pulls open the sequence of "three-dimensional stereoscopic display", the VR virtual reality technology develops rapidly, the three-dimensional virtual reality technology is applied deeply in urban planning, military, medical treatment, education, entertainment and the like, and the 3D application products are in the endlessly. In 2016, the virtual reality is called as the original year of the virtual reality, now, the virtual reality has spent the stage of concept development, the maturity of the VR technology reaches the critical point of market outbreak, the VR technology has satisfied the degree of pushing out consumer-grade products, which are about to emerge, particularly under the trend of 5G, VR is about to come to large-scale commercial application, however, the VR + game mode which is endowed with the greatest hope is still explored, VR + education is about to take one step first, and the market prospect of 3D technology products is unlimited. Hardware and software development of virtual reality 3D equipment is continuously updating and upgrading, virtual reality 3D education equipment at home and abroad is endless, but most of domestic VR hardware technology is not mature, user experience is not good, and therefore VR is difficult to apply and popularize on a large scale at one time.
Disclosure of Invention
In view of the above, the present invention provides a method for realizing 3D effect by combining a display screen with shutter 3D glasses, which is free of residual images and can visually present 3D effect.
The technical scheme of the invention is as follows: a method for realizing 3D effect by combining a display screen with shutter 3D glasses comprises the following steps,
step S001, selecting a liquid crystal screen with the height of over 120HZ, a 3D display driving board and shutter 3D glasses;
step S002, after the 3D display driving board receives the HDM, VGA or DP signals, the HDM, VGA or DP signals are firstly processed into 120HZ 3D signals, and then the 3D signals are sent to the liquid crystal display screen above 120HZ, so that 60HZ pictures can be obtained on the left and right of the liquid crystal display screen;
step S003, through the 3D display drive board, after according to the video signal of 120HZ given, output a square wave synchronizing signal of 60HZ to the shutter 3D glasses at the same time, the shutter 3D glasses are according to the square wave synchronizing signal given, come to carry on the on-off control to the left and right eyes glasses, in order to realize the left and right eyes see the picture different;
step S004, controlling the backlight of the liquid crystal screen by using a 3D display driving board, displaying the picture when the left and right pictures are refreshed to the state that the liquid crystal screen is closed, and closing the display when the left and right pictures are refreshed to the liquid crystal screen; by the method, the 3D effect is improved, and the series winding is reduced.
Preferably, in step S002, the 3D display driver board converts the left and right format or up and down format signals of 60HZ in the received HDM, VGA or DP signals to divide one left, right, up and down picture into two pictures, processes the two pictures into a 120HZ 3D signal by 60HZ, and sends the 3D signal to the liquid crystal display through the LVDS/VBY1/EDP signal transmission interface.
Preferably, in the step S003, the 60HZ square wave is at a high level and a low level, and when the shutter 3D glasses receive the high level, the left or right lens of the shutter 3D glasses is opened and the right or left lens is closed.
Preferably, in the step S003, when the low level is received, the right or left lens of the shutter 3D glasses is opened, and the left or right lens is closed.
Preferably, in step S004, the backlight is synchronously controlled to be turned on and off by PWM, and when the left and right picture data of the liquid crystal display screen is updated, that is, the video data is refreshed from the top of the liquid crystal display screen to the lower part of the liquid crystal display screen, the backlight is turned off.
Preferably, in step S004, after the data of the liquid crystal display is refreshed, the backlight is turned on.
By adopting the scheme, the invention has the beneficial effects that:
(1) when the high and low levels of 60HZ are changed, when the high level is received, the left (right) side lens of the shutter 3D glasses is opened, the right (left) side lens of the shutter 3D glasses is closed, when the low level is received, the right (left) side lens of the shutter 3D glasses is opened, and the left (right) side lens of the shutter 3D glasses is closed, so that the images seen by the left eye and the right eye of a user are different, the time of the user is the same, and the 3D effect is generated on the video of the user;
(2) after the 3D synchronous signal is given, the backlight is synchronously switched on and off through PWM according to the 3D synchronous signal, so that when the left and right picture data of the liquid crystal screen are updated, namely, the video data are refreshed to the lower part from the top of the liquid crystal screen, the backlight is closed, the glasses cannot see the residual image of data refreshing, and after the data are refreshed, the backlight is opened; thus, the 3D effect is better presented visually; therefore, the invention has the beneficial effects of no residual image and better 3D effect presentation visually.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
fig. 2 is a schematic diagram of 3D imaging of a liquid crystal screen according to the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments;
as shown in fig. 1: the present embodiment provides a method for realizing a 3D effect by a display screen in combination with shutter 3D glasses, which is as follows,
step S001, selecting a liquid crystal screen with the height of over 120HZ, a 3D display driving board and shutter 3D glasses;
step S002, after the 3D display driving board receives the HDM, VGA or DP signals, the HDM, VGA or DP signals are firstly processed into 120HZ 3D signals, and then the 3D signals are sent to the liquid crystal display screen above 120HZ, so that 60HZ pictures can be obtained on the left and right of the liquid crystal display screen;
step S003, through the 3D display drive board, after according to the video signal of 120HZ given, output a square wave synchronizing signal of 60HZ to the shutter 3D glasses at the same time, the shutter 3D glasses are according to the square wave synchronizing signal given, come to carry on the on-off control to the left and right eyes glasses, in order to realize the left and right eyes see the picture different;
step S004, controlling the backlight of the liquid crystal screen by using a 3D display driving board, displaying the picture when the left and right pictures are refreshed to the state that the liquid crystal screen is closed, and closing the display when the left and right pictures are refreshed to the liquid crystal screen; by the method, the 3D effect is improved, and the series winding is reduced.
In step S002, the 3D display driver board converts the left-right format or up-down format signal of 60HZ in the received HDM, VGA or DP signals to divide one left-right or up-down picture into two pictures, processes the two pictures into a 120HZ 3D signal by 60HZ, and sends the 120HZ 3D signal to the liquid crystal display through the LVDS/VBY1/EDP signal transmission interfaces.
In the step S003, the 60HZ square wave is at a high level and a low level, and when the shutter 3D glasses receive the high level, the left or right lens of the shutter 3D glasses is opened and the right or left lens is closed; .
In step S003, when the low level is received, the right or left lens of the shutter 3D glasses is opened, and the left or right lens is closed.
In step S004, the on-off control is performed on the backlight synchronously through PWM, and when the left and right picture data of the liquid crystal display screen is updated, that is, when the video data is refreshed from the top of the liquid crystal display screen to the lower part, the backlight is turned off.
In step S004, after the data of the liquid crystal display is refreshed, the backlight is turned on.
Example 1：
As shown in FIG. 2, the liquid crystal screen 3D imaging principle of the invention is as follows:
(1) the liquid crystal screen must be provided with a Dynamic backlight to shield the middle transient state so as to prevent the left eye from seeing the image of the right eye or the right eye from seeing the image of the left eye; this corresponds to PANEL control over 120HZ-240 HZ;
(2) since the refresh rate of the PANEL is high and the sequence of signals to be sent in 3D is LLRR, the backlight can be turned off conveniently at the frame to be updated, and turned on at the second cycle of repetition, and at the same time, the left and right eyes of the shutter glasses are turned on in sequence, so that the left eye can be prevented from seeing the image of the right eye or the right eye can be prevented from seeing the image of the left eye.
(3) The 3D signal transmission sequence of the PANEL of 120HZ to 240HZ is LLRR, while the switching frequency of the shutter glasses is still 60HZ, and the resolution of each FRAME is not affected because the video content is alternately transmitted.
Example 2：
(1) When the high and low levels of 60HZ are changed, when the high level is received, the left (right) side lens of the shutter 3D glasses is opened, the right (left) side lens of the shutter 3D glasses is closed, when the low level is received, the right (left) side lens of the shutter 3D glasses is opened, and the left (right) side lens of the shutter 3D glasses is closed, so that the images seen by the left eye and the right eye of a user are different, the time of the user is the same, and the 3D effect is generated on the video of the user;
(2) after the 3D synchronous signal is given, the backlight is synchronously switched on and off through PWM according to the 3D synchronous signal, so that when the left and right picture data of the liquid crystal screen are updated, namely, the video data are refreshed to the lower part from the top of the liquid crystal screen, the backlight is closed, the glasses cannot see the residual image of data refreshing, and after the data are refreshed, the backlight is opened; this visually better represents the 3D effect.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for realizing 3D effect by combining a display screen with shutter 3D glasses is characterized by comprising the following steps of; the method comprises the following steps of,
step S001, selecting a liquid crystal screen with the height of over 120HZ, a 3D display driving board and shutter 3D glasses;
step S002, after the 3D display driving board receives the HDM, VGA or DP signals, the HDM, VGA or DP signals are firstly processed into 120HZ 3D signals, and then the 3D signals are sent to the liquid crystal display screen above 120HZ, so that 60HZ pictures can be obtained on the left and right of the liquid crystal display screen;
step S003, through the 3D display drive board, after according to the video signal of 120HZ given, output a square wave synchronizing signal of 60HZ to the shutter 3D glasses at the same time, the shutter 3D glasses are according to the square wave synchronizing signal given, come to carry on the on-off control to the left and right eyes glasses, in order to realize the left and right eyes see the picture different;
step S004, controlling the backlight of the liquid crystal screen by using a 3D display driving board, displaying the picture when the left and right pictures are refreshed to the state that the liquid crystal screen is closed, and closing the display when the left and right pictures are refreshed to the liquid crystal screen; by the method, the 3D effect is improved, and the series winding is reduced.
2. The method for realizing 3D effect of the display screen combined with the shutter 3D glasses according to claim 1, wherein the method comprises the following steps: in step S002, the 3D display driver board converts the left-right format or up-down format signal of 60HZ in the received HDM, VGA or DP signals to divide one left-right or up-down picture into two pictures, processes the two pictures into a 120HZ 3D signal by 60HZ, and sends the 120HZ 3D signal to the liquid crystal display through the LVDS/VBY1/EDP signal transmission interfaces.
3. The method for realizing 3D effect of the display screen combined with the shutter 3D glasses according to claim 1, wherein the method comprises the following steps: in the step S003, the 60HZ square wave is at a high level and a low level, and when the shutter 3D glasses receive the high level, the left or right lens of the shutter 3D glasses is opened and the right or left lens is closed.
4. The method for realizing 3D effect of the display screen combined with the shutter 3D glasses according to claim 3, wherein the method comprises the following steps: in step S003, when the low level is received, the right or left lens of the shutter 3D glasses is opened, and the left or right lens is closed.
5. The method for realizing 3D effect of the display screen combined with the shutter 3D glasses according to claim 1, wherein the method comprises the following steps: in step S004, the on-off control is performed on the backlight synchronously through PWM, and when the left and right picture data of the liquid crystal display screen is updated, that is, when the video data is refreshed from the top of the liquid crystal display screen to the lower part, the backlight is turned off.
6. The method for realizing 3D effect of the display screen combined with the shutter 3D glasses according to claim 5, wherein the method comprises the following steps: in step S004, after the data of the liquid crystal display is refreshed, the backlight is turned on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010719200.8A CN111741282A (en) | 2020-07-23 | 2020-07-23 | Method for realizing 3D effect by combining display screen with shutter 3D glasses |
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| CN202010719200.8A CN111741282A (en) | 2020-07-23 | 2020-07-23 | Method for realizing 3D effect by combining display screen with shutter 3D glasses |
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Citations (5)
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|---|---|---|---|---|
| JPH01252093A (en) * | 1988-03-31 | 1989-10-06 | Nec Home Electron Ltd | Stereoscopic television receiver |
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| CN102104789A (en) * | 2009-12-21 | 2011-06-22 | 三星电子株式会社 | Display apparatus |
| CN102244803A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | Device with 3D display function and driving method thereof |
| CN102572480A (en) * | 2011-12-21 | 2012-07-11 | 四川长虹电器股份有限公司 | Shutter 3D LCD TV ghosting eliminating device and method for not influencing brightness |
-
2020
- 2020-07-23 CN CN202010719200.8A patent/CN111741282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252093A (en) * | 1988-03-31 | 1989-10-06 | Nec Home Electron Ltd | Stereoscopic television receiver |
| CN102104789A (en) * | 2009-12-21 | 2011-06-22 | 三星电子株式会社 | Display apparatus |
| CN101937147A (en) * | 2010-08-18 | 2011-01-05 | 天马微电子股份有限公司 | 3D liquid crystal display and 3D liquid crystal display system |
| CN102244803A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | Device with 3D display function and driving method thereof |
| CN102572480A (en) * | 2011-12-21 | 2012-07-11 | 四川长虹电器股份有限公司 | Shutter 3D LCD TV ghosting eliminating device and method for not influencing brightness |
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Application publication date: 20201002 |