CN102630036B - Stereoscopic display device and control the method for its display screen display brightness - Google Patents
Stereoscopic display device and control the method for its display screen display brightness Download PDFInfo
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- CN102630036B CN102630036B CN201210096143.8A CN201210096143A CN102630036B CN 102630036 B CN102630036 B CN 102630036B CN 201210096143 A CN201210096143 A CN 201210096143A CN 102630036 B CN102630036 B CN 102630036B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005286 illumination Methods 0.000 claims description 6
- 230000008447 perception Effects 0.000 claims description 6
- 230000003313 weakening effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention discloses a kind of stereoscopic display device and control the method for its display screen display brightness, the defect of display screen flicker effects beholder viewing experience when the relative beholder of display screen overcoming current stereoscopic display device rotates.The method comprises: obtain the anglec of rotation of display screen around center; Obtain the side-play amount that beholder is corresponding with being parallel to the plane that rotates afterwards display screen under this anglec of rotation; Judge, when the adjustment that beholder is positioned at postrotational display screen is interval, the display brightness of display screen to be adjusted to preset value according to this side-play amount.The present invention efficiently solves the problem of stereoscopic display device relative to display screen flicker during beholder shift position.
Description
Technical field
The present invention relates to stereo display technique, particularly relate to a kind of stereoscopic display device, and control the method for this stereoscopic display device display screen display brightness.
Background technology
The Display Technique that current stereoscopic display device more often adopts, mainly lens pillar formula grating and two kinds, slit grating.Because grating has periodic characteristic, when especially beholder changes towards the position of stereoscopic display device display screen in the position of the relative stereoscopic display device display screen of beholder, just may feel that the display screen of stereoscopic display device produces by secretly brightening or changing (i.e. moire fringes) by bright dimmed flicker comparatively significantly.This flicker change Producing reason is because for stereoscopic display device, beholder has transformed to the position of another solid region from a solid region, content shown by stereoscopic display device, in this change, inevitably can be subject to the impact of moire fringes.
Comparatively at large, beholder's hand-held three-dimensional display device rotates to an angle, and is that the eyes of beholder move another viewing areas by a viewing areas of this equipment for stereoscopic display device.Under this scene, stereoscopic display device is the position and the angle change that adapt to the relative beholder of display screen, generally all can occur the situation of glimmering.Such flicker directly can affect the viewing experience of beholder.
Summary of the invention
Technical problem to be solved by this invention is the defect of the display screen relative beholder overcoming current stereoscopic display device display screen flicker effects beholder viewing experience when rotating.
In order to solve the problems of the technologies described above, the invention provides a kind of method controlling stereoscopic display device display screen display brightness, comprising:
Obtain the anglec of rotation of display screen around center;
Obtain the side-play amount that beholder is corresponding with being parallel to the plane that rotates afterwards display screen under this anglec of rotation;
Judge, when the adjustment that beholder is positioned at postrotational display screen is interval, the display brightness of display screen to be adjusted to preset value according to this side-play amount.
Wherein, the display screen obtaining stereoscopic display device, around the step of the anglec of rotation at center, comprising:
The components and parts with the perception stereoscopic display device anglec of rotation installed in stereoscopic display device are utilized to obtain the anglec of rotation of display screen around center of stereoscopic display device.
Wherein, obtain this side-play amount according to expression formula offset=U × sin α, wherein, U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect; α is this anglec of rotation; Offset is this side-play amount.
Wherein, when the interval of side-play amount in a display cycle T of display screen
time upper, the display brightness of display screen was adjusted to preset value;
Wherein, interval
for this adjustment is interval, a is for being greater than 0 and being less than
empirical value.
Wherein, be multiple subinterval by this adjustment interval division, the preset value that each subinterval is corresponding different.
Wherein, the display brightness of display screen is adjusted to the step of preset value, comprises:
The backlight illumination of adjustment display panel, or the display brightness of adjustment image.
Present invention also offers a kind of stereoscopic display device, comprise display screen, also comprise:
Angle acquisition module, for obtaining the anglec of rotation of display screen around center;
Side-play amount acquisition module, for obtain beholder under this anglec of rotation be parallel to rotate after side-play amount corresponding to the plane of display screen;
Adjusting module, during for judging that according to this side-play amount beholder is positioned at the adjustment interval of postrotational display screen, is adjusted to preset value by the display brightness of display screen.
Wherein, this angle acquisition module is be arranged in stereoscopic display device the components and parts with the perception stereoscopic display device anglec of rotation.
Wherein, this side-play amount acquisition module is used for obtaining this side-play amount according to expression formula offset=U × sin α, and wherein, U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect; α is this anglec of rotation; Offset is this side-play amount.
Wherein, this adjusting module comprises:
Judging unit, for judging the particular location of this side-play amount in display screen display cycle T;
Adjustment unit, for judging the interval of side-play amount in display screen display cycle T when judging unit
time upper, the display brightness of display screen was adjusted to preset value;
Wherein, interval
for this adjustment is interval, a is for being greater than 0 and being less than
empirical value.
This adjusting module comprises:
Division unit, for being multiple subinterval by this adjustment interval division, the preset value that each subinterval is corresponding different.
Wherein, this adjusting module is used for the backlight illumination by adjusting display panel, or the display brightness of adjustment image, and the display brightness of display screen is adjusted to preset value.
Compared with prior art, the embodiment of the present invention controls the brightness of display screen, efficiently solves the problem of stereoscopic display device relative to display screen flicker during beholder shift position.Embodiments of the invention, when stereoscopic display device rotates relative to beholder, regulate the brightness of display screen, thus weaken the impact of moire fringes according to the change of position of rotation.Embodiments of the invention avoid secretly bright alternately or bright dark alternating strips to the discomfort of beholder.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the embodiment of the present invention controls the method for stereoscopic display device display screen display brightness.
Fig. 2 is the scene schematic diagram that beholder is positioned at stereoscopic display device front.
Fig. 3 is the position view that stereoscopic display device display screen rotates with beholder's eyes after an angle.
Fig. 4 be stereoscopic display device display screen can the schematic diagram of optic zone and middle optic zone blinking region.
Fig. 5 is the rule schematic diagram of brightness along with change in location in viewing plane of moire fringes.
Fig. 6 is the structural representation of embodiment of the present invention stereoscopic display device.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
As shown in Figure 1, the method for embodiment of the present invention control stereoscopic display device display screen display brightness mainly comprises the steps.
Step 10, obtains the anglec of rotation of display screen around center of stereoscopic display device.
In embodiments of the invention, in space, horizontal direction is X-axis, and vertical direction is Y-axis.The anglec of rotation can be the rotation angle of stereoscopic display device and Y-axis, and also can be the rotation angle of stereoscopic display device and X-axis, the embodiment of the present invention be particularly limited to this.
Embodiments of the invention utilize the gyroscope (microelectromechanicgyroscope gyroscope instrument chip and corresponding supporting component) installed in stereoscopic display device to realize stereoscopic display device and follow the tracks of the anglec of rotation obtained relative to beholder.In other examples, other also can be adopted to have the components and parts of the perception stereoscopic display device anglec of rotation.
Step 20, according to the anglec of rotation of display screen around center, obtain beholder under this anglec of rotation be parallel to rotation after side-play amount corresponding to the plane of this stereoscopic display device display screen.
Embodiments of the invention are for slit grating stereo display technique.In Fig. 2, MN is the panel of stereoscopic display device, AD there is slit grating, P is the pitch between stereoscopic display device grating, U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect, S is the distance between grating and panel, T is the width that U distance can watch stereoeffect, i.e. a viewing area.V is the graphical arrangement cycle of stereoscopic display device, and pixel is unit in proper order, passes through
can be long measure millimeter by secondary pixel transitions, wherein Q be that the display screen point of long measure is apart from (not shown) with millimeter.
Following relation is obtained by triangle similarity relation.
And
Can obtain thus:
As shown in Figure 4, stereoscopic display device display screen with can adjacent other optic zones of optic zone (become below centre can optic zone) be to be assembled through the slit that grating is adjacent by the pixel on display screen to form just to display screen middle.Because the distance between slit is all equal, can learn in the plane of distance display screen same distance by triangle relation, each can the horizontal width of optic zone be equal.
As shown in Figure 3, when the display screen 202 of stereoscopic display device around Y-axis (perpendicular to drawing in figure, illustrating with 201) anglec of rotation α is (usually, α is less than 80 degree) time (in figure, representing direction of rotation with arrow shown in 203), under can representing that beholder is positioned at the α anglec of rotation by following expression formula (4), be parallel to the side-play amount offset of the display screen place plane rotating rear stereoscopic display device:
Offset=U × sin α formula (4)
Wherein, U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect.
Illustrated in fig. 3 is that before the display screen rotation of stereoscopic display device, the images of left and right eyes of beholder receives left-eye image and eye image respectively, and the side-play amount after the display screen rotation alpha of stereoscopic display device.
Step 30, judges according to this side-play amount, when the adjustment that beholder is positioned at postrotational display screen is interval, the display brightness of display screen is adjusted to preset value and shows.
Figure 5 shows that the rule of the brightness of moire fringes along with change in location in viewing plane, transverse axis is that the longitudinal axis is the opacity value of moire fringes from side to the displacement of opposite side movement in viewing plane.When offset is positioned at the trough of curve shown in Fig. 5, moire fringes is the gentliest screen display is present intensity; With offset increase, moire fringes can progressively increase, and when offset is positioned at the crest of curve shown in Fig. 5, moire fringes is the heaviest, namely screen display can comparatively trough time slightly dark.
Correspond to a viewing area, as shown in Figure 4, when beholder is positioned at the visual region of stereoscopic display device display screen
and symmetry
time, moire fringes darkness is little, makes moire fringes not obvious.Wherein, a is for being greater than 0 and being less than
empirical value.Corresponding, as shown in Figure 5, on moire fringes darkness period of change
and
on interval, moire fringes darkness is less, and the viewing effect of stereo-picture is better.
As shown in Figure 4, be in the viewing plane of U in distance display screen distance, other can the horizontal width of optic zone equal centre can the horizontal width of optic zone, so the viewing area that display screen is all in the viewing plane apart from display screen being U is periodic arrangement.
Pass through expression formula
conversion, offset value can be limited to a viewing area.
When offset falls into any one viewing area of stereoscopic display device display screen, namely side-play amount offset interval in adjustment
upper change, moire fringes darkness is more interval
and
corresponding darkness can increase to some extent.In order to weaken the impact of moire fringes, when side-play amount offset is interval in adjustment
during upper change, the brightness of adjustment display screen is a preset value.This preset value, or the display brightness enhancing screen, make the impact of moire fringes diminish; Or reduce the display brightness of screen, make moire fringes become not obvious.Wherein, the display brightness of screen, or the backlight illumination passing through hardware adjustment display panel, or the display brightness of image is adjusted by software.
Further, can the darkness of moire fringes according to Fig. 5, by side-play amount offset in interval
the interior different brightness values according to display, by interval
be divided into multiple subinterval (two or more subinterval), subinterval is made to correspond to different preset values, that is: the angular dimension rotated according to display screen shows with corresponding preset value, thus can weaken the influence degree of moire fringes more subtly in rotary course.
As shown in Figure 6, the stereoscopic display device of the embodiment of the present invention, comprises display screen, angle acquisition module 610, side-play amount acquisition module 620 and adjusting module 630.
Angle acquisition module 610, for obtaining the anglec of rotation of display screen around center.
Side-play amount acquisition module 620, is connected with angle acquisition module 610, for obtain beholder under this anglec of rotation be parallel to rotate after side-play amount corresponding to the plane of display screen.
Adjusting module 630, is connected with side-play amount acquisition module 620, during for judging that according to this side-play amount beholder is positioned at the adjustment interval of postrotational display screen, the display brightness of display screen is adjusted to preset value.
Wherein, this angle acquisition module 610 for being arranged in stereoscopic display device the components and parts with the perception stereoscopic display device anglec of rotation, such as gyroscope etc.
Wherein, this side-play amount acquisition module 620 for obtaining this side-play amount according to expression formula offset=U × sin α,
Wherein, U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect, and α is this anglec of rotation, and offset is this side-play amount.
Wherein, this adjusting module 630 can comprise:
Judging unit, for judging the particular location of this side-play amount in display screen display cycle T;
Adjustment unit, for judging the interval of side-play amount in display screen display cycle T when judging unit
time upper, the display brightness of display screen was adjusted to preset value;
Wherein, interval
for this adjustment is interval, a is for being greater than 0 and being less than
empirical value.
Wherein, this adjusting module 630 can comprise:
Division unit, for interval by this adjustment
be divided into multiple subinterval, the preset value that each subinterval is corresponding different.
Wherein, this adjusting module 630 is for the backlight illumination by adjustment display panel, or the display brightness of adjustment image, and the display brightness of display screen is adjusted to preset value.
Although the execution mode disclosed by the present invention is as above, the execution mode that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (12)
1. control a method for stereoscopic display device display screen display brightness, comprising:
Obtain the anglec of rotation of display screen around center;
Obtain the side-play amount that beholder is corresponding with being parallel to the plane that rotates afterwards display screen under this anglec of rotation;
Judge, when the adjustment that beholder is positioned at postrotational display screen is interval, the display brightness of display screen is adjusted to preset value, weakens moire fringes according to this side-play amount.
2. method according to claim 1, wherein, the display screen obtaining stereoscopic display device, around the step of the anglec of rotation at center, comprising:
The components and parts with the perception stereoscopic display device anglec of rotation installed in stereoscopic display device are utilized to obtain the anglec of rotation of display screen around center of stereoscopic display device.
3. method according to claim 1, wherein:
This side-play amount is obtained according to expression formula offset=U × sin α,
Wherein,
U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect;
α is this anglec of rotation;
Offset is this side-play amount.
4. method according to claim 1, wherein:
When the interval of side-play amount in a display cycle T of display screen
time upper, the display brightness of display screen was adjusted to preset value;
Wherein, interval
for this adjustment is interval, a is for being greater than 0 and being less than
empirical value.
5. method according to claim 4, wherein:
Be multiple subinterval by this adjustment interval division, the preset value that each subinterval is corresponding different.
6. the method according to claim 1,4 or 5, wherein, is adjusted to the step of preset value, comprises by the display brightness of display screen:
The backlight illumination of adjustment display panel, or the display brightness of adjustment image.
7. a stereoscopic display device, comprises display screen, also comprises:
Angle acquisition module, for obtaining the anglec of rotation of display screen around center;
Side-play amount acquisition module, for obtain beholder under this anglec of rotation be parallel to rotate after side-play amount corresponding to the plane of display screen;
Adjusting module, during for judging that according to this side-play amount beholder is positioned at the adjustment interval of postrotational display screen, being adjusted to preset value by the display brightness of display screen, weakening moire fringes.
8. equipment according to claim 7, wherein:
This angle acquisition module is be arranged in stereoscopic display device the components and parts with the perception stereoscopic display device anglec of rotation.
9. equipment according to claim 7, wherein:
This side-play amount acquisition module is used for obtaining this side-play amount according to expression formula offset=U × sin α,
Wherein,
U is positioned at the distance that stereoscopic display device display screen front distance panel can watch stereoeffect;
α is this anglec of rotation;
Offset is this side-play amount.
10. equipment according to claim 7, wherein, this adjusting module comprises:
Judging unit, for judging the particular location of this side-play amount in display screen display cycle T;
Adjustment unit, for judging the interval of side-play amount in display screen display cycle T when judging unit
time upper, the display brightness of display screen was adjusted to preset value;
Wherein, interval
for this adjustment is interval, a is for being greater than 0 and being less than
empirical value.
11. equipment according to claim 10, wherein, this adjusting module comprises:
Division unit, for being multiple subinterval by this adjustment interval division, the preset value that each subinterval is corresponding different.
12. equipment according to claim 7,10 or 11, wherein:
This adjusting module is used for the backlight illumination by adjusting display panel, or the display brightness of adjustment image, and the display brightness of display screen is adjusted to preset value.
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| CN103780746B (en) * | 2012-10-19 | 2016-12-21 | 宇瞻科技股份有限公司 | touch screen backlight switch control method |
| CN105989815A (en) * | 2015-06-05 | 2016-10-05 | 乐视致新电子科技（天津）有限公司 | Head-mounted 3D display, brightness adjustment system and method |
| CN112672138A (en) * | 2020-12-14 | 2021-04-16 | 聚好看科技股份有限公司 | 3D video image display method and display equipment |
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| CN101098354A (en) * | 2006-06-30 | 2008-01-02 | 佛山市顺德区顺达电脑厂有限公司 | Handhold electronic device and method capable of auto-adjusting backlight brightness |
| CN101211554A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Screen brightness control method and system |
| CN101425262A (en) * | 2007-11-02 | 2009-05-06 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN102378032A (en) * | 2010-08-09 | 2012-03-14 | Lg电子株式会社 | System, apparatus, and method for displaying 3-dimensional image and location tracking device |
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| CN101098354A (en) * | 2006-06-30 | 2008-01-02 | 佛山市顺德区顺达电脑厂有限公司 | Handhold electronic device and method capable of auto-adjusting backlight brightness |
| CN101211554A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Screen brightness control method and system |
| CN101425262A (en) * | 2007-11-02 | 2009-05-06 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN102378032A (en) * | 2010-08-09 | 2012-03-14 | Lg电子株式会社 | System, apparatus, and method for displaying 3-dimensional image and location tracking device |
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Inventor after: Li Xiaoming Inventor after: Ge Zhang Inventor after: Song Lei Inventor after: Liu Ning Inventor before: Li Xiaoming Inventor before: Ge Zhang |
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Effective date of registration: 20180717 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: SUPERD Co.,Ltd. Address before: 518053 H-1 Tung 101, overseas Chinese town, Nanshan District, Shenzhen, Guangdong. Patentee before: SHENZHEN SUPER PERFECT OPTICS Ltd. |
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