CN105353518A - Method for reducing moire generated by stereoscopic display device - Google Patents
Method for reducing moire generated by stereoscopic display device Download PDFInfo
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- CN105353518A CN105353518A CN201510750789.7A CN201510750789A CN105353518A CN 105353518 A CN105353518 A CN 105353518A CN 201510750789 A CN201510750789 A CN 201510750789A CN 105353518 A CN105353518 A CN 105353518A
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- display device
- backlight module
- blocked area
- slit grating
- width
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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
- G02B30/26—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 autostereoscopic type
- G02B30/27—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 autostereoscopic type involving lenticular arrays
Abstract
The invention provides a method for reducing moire generated by a stereoscopic display device. The method for reducing the moire generated by the stereoscopic display device comprises the steps of: providing a backlight module, which provides a light source for the stereoscopic display device; and providing a slit grating, which is arranged at a light emitting side of the backlight module and comprises sheltering regions and light transmitting regions which are alternatively arranged at intervals. Each sheltering region comprises a reflecting material layer which is used for reflecting light rays irradiated to the sheltering region, and the reflected light rays irradiate to the backlight module; the reflected light rays irradiated to the backlight module is reflected again for reuse; and a slot is formed in each sheltering region of the slit grating. Compared with the prior art, the method provided by the invention can enhance the brightness of the stereoscopic display device without increasing power of the backlight module, and reduces the formation of the moire by forming the slots in the sheltering regions, so as to enhance viewing effect of customers.
Description
Technical field
The present invention relates to stereo display technique field, particularly a kind of method alleviating the moire fringes that 3 d display device produces.
Background technology
Current, 3 d display device is more and more known by people, and the pattern of stereo display mainly comprises glasses three-dimensional pattern and bore hole three-dimensional pattern.The display device of glasses three-dimensional pattern needs to wear special glasses, left eyeglass lens and right eye eyeglass allow respectively the line polarisation in different polarization direction through, thus the image that the line polarisation that the image that left eye and right eye are watched is different polarization direction is formed, left-eye image and eye image are carried out integration and are presented stereo-picture by brain.Because people need to wear special eyeglasses when watching the image of glasses stereo display, otherwise image will thicken, and makes the range of application of described glasses solid receive limitation.Therefore, the display device of bore hole three-dimensional pattern is subject to liking of more and more people.
At present, the structure of the 3 d display device of existing liquid crystal slit grating usually as shown in Figures 1 and 2.The 3 d display device that Bidimensional/three-dimensional image switches comprises display module 2 and is located at the slit grating 1 of display module 2 light emission side.Current described slit grating 1 is alternately arranged for blocked area and photic zone, and a part of light can be blocked in the blocked area of described slit grating 1, causes described display module 2 brightness to reduce, affects viewing effect.Meanwhile, also can cause moire fringes because periodically block by force, have a strong impact on the viewing experience of spectators.
In view of this, provide a kind of and reduce light losing, improve the brightness of described display module displays and alleviate the Morie fringe that 3 d display device produces very necessary.
Summary of the invention
Low for existing 3 d display device display brightness, the large and obvious technical matters of Morie fringe of light losing, the invention provides a kind of method alleviating the moire fringes that 3 d display device produces.
Alleviate a method for the moire fringes that 3 d display device produces, comprise the steps:
A, provide backlight module, described backlight module provides light source for 3 d display device;
B, provide slit grating, described slit grating is located at described backlight module light emission side, and described slit grating comprises the spaced blocked area that is arranged alternately and photic zone;
C, described blocked area comprise reflective material layer, and for the light of reflected illumination to described blocked area, described reflection ray is irradiated to backlight module;
D, the reflection ray being irradiated to backlight module are utilized again by secondary reflection again;
E, finedraw is set in each blocked area of described slit grating.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, the width of described multiple blocked area is identical, and the width of described multiple photic zone is identical.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, described reflective material layer is metal film layer or alloy film material layer.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, in each described blocked area, be provided with many finedraws.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, the width of many finedraws of described blocked area is incomplete same, and the spacing between adjacent finedraw is different mutually.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, the finedraw width sum in each described blocked area is not more than 10% of described blocked area width.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, adjacent described photic zone and the width sum of described blocked area are the pitch of described slit grating, and the ratio of the width of described photic zone and the pitch of described slit grating is between 20%-40%.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, the width of described photic zone and the ratio of described slit grating pitch are between 20%-30%.
Alleviate in a preferred embodiment of the method for the moire fringes that 3 d display device produces provided by the invention, described backlight module comprises reflector layer.
Compared to prior art, adopt and provided by the inventionly alleviate the method for moire fringes that 3 d display device produces by the barrier material of described blocked area is set to reflectorized material, thus the light of described blocked area to be reflexed in backlight module and to be re-used by the reflection of the reflector layer of backlight module, add the brightness of photic zone, thus improve the brightness of described 3 d display device when not increasing the power of described backlight module.This improvement can extend the serviceable life of described backlight module, and improves serviceable life of described 3 d display device and economize energy.In addition, the present invention, by arranging finedraw in blocked area thus alleviating the formation of moire fringes, strengthens the viewing effect of client.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of embodiment of the 3 d display device 3-dimensional image output state of prior art;
Fig. 2 is the structural representation of the another kind of embodiment of the 3 d display device 3-dimensional image output state of prior art;
Fig. 3 is the structural representation of 3 d display device embodiment one provided by the invention;
Fig. 4 is the structural representation of a kind of embodiment of slit grating of 3 d display device provided by the invention;
Fig. 5 is the structural representation of the another kind of embodiment of slit grating of 3 d display device provided by the invention;
Fig. 6 is the structural representation of 3 d display device embodiment two provided by the invention;
Fig. 7 is the process flow diagram alleviating the method for the moire fringes that 3 d display device produces provided by the invention.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
Refer to Fig. 3, Fig. 3 is the structural representation of 3 d display device embodiment one provided by the invention.Described 3 d display device 100 comprises display 11, slit grating 12 and backlight module 13.Described slit grating 12 is located at the light emission side surface of described display 11, and described backlight module 13 is located at described display 11 dorsal part, and described backlight module 13 illuminates described display 11 and then affects the 3D display effect of described display 11.
Described slit grating 12 is located at the surface of described display 11 light emission side.Described slit grating 12 comprises blocked area 121 and photic zone 122, and described slit grating 12 adopts and on transparent substrate, arranges light-shielding material layers thus form described blocked area 121 and described photic zone 122.The spaced setting in described blocked area 121 and described photic zone 122.And the width of described blocked area 121 is identical, the width of described photic zone 122 is identical.
Multiple spaced blocked area 121 and the described photic zone 122 of arranging of described slit grating 12 is formed " parallax barrier ".Described " parallax barrier " has by the layer precisely cutting into strip, and it can allow the eyes of user receive two group images, and namely the left eye of user and right eye accept a group image respectively, to produce parallax thus to form 3-D view.Utilize described " parallax barrier ", eyes of observer can only see a row pixel through a slit of described slit grating 12.Such as, if left eye can only see odd column pixel, right eye can only see even column pixel; Or left eye can only see even column pixel, right eye can only see odd column pixel.Finally, enter the fusion of image through people's brain of left eye and right eye, thus realize user and perceive stereo-picture.
The number of described blocked area 121 is multiple, and the width of described multiple blocked area 121 is identical.Described blocked area 121 is provided with in the present invention, and the material that described multiple described blocked area 121 adopts is reflectorized material.Preferably, described reflectorized material can be metallic film or alloy film material.The light that described display 11 sends can reflect by described blocked area 121, reflexes to described backlight module 13, and described backlight module 13 comprises reflector layer, and therefore reflection ray can be re-used by after the reflector layer of described backlight module 13 again secondary reflection.Thus increase the utilization factor of light, the brightness of described 3 d display device 100 is improved when not increasing the brightness of backlight module 13.
Further, inside, described blocked area 121 is also formed can the finedraw 1211 of printing opacity, and in each described blocked area 121, described finedraw 1211 can be provided with one or more.The direction of described finedraw 1211 is identical with the bearing of trend of described blocked area striped, and the distance between adjacent described finedraw 1211 is all not identical, and the width of described finedraw 1211 can be different.
Particularly, referring to Fig. 4, is the structural representation of a kind of embodiment of slit grating of 3 d display device provided by the invention.Each described blocked area 121 all has a finedraw 1211, and the width of described finedraw 1211 can be different.Wherein, the spacing between adjacent described finedraw 1211 is not identical.Such as, if the spacing set between adjacent described finedraw 1211 is respectively a, b and c, so the numerical value of a, b and c is different.Certainly, be not limited to the present embodiment, in other alternate embodiments, the spacing between adjacent described finedraw 1211 also can part identical.
Refer to Fig. 5, Fig. 5 is the structural representation of the another kind of embodiment of slit grating of 3 d display device provided by the invention.In the present embodiment, the finedraw 1211 of each described blocked area 121 can be provided with many, and the width of described many finedraws 1211 can be different.Identical with the embodiment shown in Fig. 4, the distance between adjacent described finedraw 1211 is all not identical, and the width of described finedraw 1211 can not be identical.The width sum of the finedraw 1211 of each described blocked area 121 is not more than 1/10th of described blocked area 121 width.
Described finedraw 1211 is located at described blocked area 121 brokenly can alleviate Morie fringe.Particularly, described blocked area 121 replaces mutually with described photic zone 122, and the width of described blocked area 121 is identical, the width of described photic zone 122 is identical, and therefore blocking of described blocked area 121 can make the light through described photic zone 122 interfere phenomenon thus produce Morie fringe.And in 3 d display device provided by the invention, described blocked area 21 is reflectorized material.The light that described display 11 sends is reflected in described blocked area 21, and by light reflection to described backlight module 13.Described backlight module 13 surface is pasted with reflectorized material and is again carried out by reflection ray reflecting thus again utilizing.Therefore, under identical power, the light intensity through the light of described photic zone 122 increases, and therefore 3 d display device provided by the invention more easily produces moire fringes.By the described finedraw 1211 of the described finedraw 1211 and different in width that arrange different spacing, the interference fringe of described 3 d display device 100 Formation rule can be avoided by the design of described finedraw 1211, alleviate Morie fringe to a great extent, thus strengthen appreciation effect largely.
Described photic zone 122 is that described transparent polar plate is not by part that described blocked area 21 is blocked.Described photic zone 122 is in strip and the number of described photic zone 122 is multiple, described multiple photic zone 122 and the setting alternate with each other of described blocked area 121.
The width summation that the aperture opening ratio of described slit grating 12 refers to described photic zone 122 accounts for the number percent of the width of described slit grating 12.Particularly, because the width of each described blocked area 121 is all identical, and the width of each described photic zone 122 is identical, therefore the width of described blocked area 121 is defined as m, and the width of described photic zone 122 is defined as n.If the pitch of described slit grating 12 is defined as p, the pitch of described slit grating 12 is the sum of the width of a photic zone 122 and a blocked area be adjacent 121, is formulated i.e. p=m+n.Described aperture opening ratio k represents, then described aperture opening ratio k=n/k.The value of described aperture opening ratio k is between 20%-40%, and preferably, the value of described aperture opening ratio k is between 20%-30%.
Embodiment two
Referring to Fig. 6, is the structural representation of 3 d display device embodiment two provided by the invention.3 d display device 200 in embodiment two comprises display 21, slit grating 22 and backlight module 23.3 d display device 200 in embodiment two is with the key distinction of the 3 d display device 100 in embodiment one: described in embodiment one, slit grating 12 is located at the surface of described display 11 light emission side, but in embodiment two, described slit grating 22 is located between described display 21 and described backlight module 23.Described slit grating 22 comprises blocked area 221 and photic zone 222, and described blocked area 221 is provided with finedraw 2211.The structure of described blocked area 221, photic zone 222 and described finedraw 2211 is all identical with the situation in described embodiment one, repeats no more here.
In the present embodiment, described blocked area 221 is reflected the light that described backlight module 23 sends, and the light of reflection returns in described backlight module 23 and proceeds to utilize.The light that described backlight module 23 sends and the light launched through described blocked area 221 pass described photic zone 222 jointly.Same, the 3 d display device that described embodiment two provides can improve the brightness of described 3 d display device 100 when not increasing described backlight module 23.
Refer to Fig. 7, the invention provides a kind of method alleviating 3 d display device generation moire fringes, comprise the steps:
S1, provide backlight module 13, described backlight module 13 provides light source for 3 d display device 100;
S2, provide slit grating 12, described slit grating 12 is located at described backlight module 13 light emission side, and described slit grating 12 comprises the spaced blocked area 121 that is arranged alternately and photic zone 122;
Blocked area 121 number of described slit grating 12 is multiple, and the width of described multiple blocked area 121 is all identical, and equally, the number of described photic zone 122 is multiple, and the width of described multiple photic zone 122 is all identical.
S3, described blocked area 121 comprise reflective material layer, for the light of reflected illumination to described blocked area 121, and reflection ray are irradiated to backlight module 13;
Described blocked area 121 comprises reflective material layer, and described reflective material layer can be metallic film or alloy film material, and described reflective material layer will be irradiated to the light reflection of described blocked area 121, and reflection ray is irradiated to backlight module 13;
S4, the reflection ray being irradiated to backlight module 13 are utilized again by secondary reflection again;
Described backlight module 13 comprises reflector layer, and therefore reflection ray can be carried out secondary reflection again thus again utilize by described backlight module 13.Being appreciated that described reflection ray also again can be utilized after multiple reflections, thus increasing the service efficiency of light, improving the brightness of described 3 d display device when not increasing the power of described backlight module 13.
S5, finedraw is set in each blocked area 121 of described slit grating 12.
Be equipped with one or more finedraw 1211 in each described blocked area 121, the width of described finedraw 1211 can be identical, also can be different; And distance between adjacent described finedraw 1211 is all not identical.Erratic described finedraw 1211 can prevent or alleviate the Morie fringe of described 3 d display device 100 effectively.
Compared to prior art, adopt 3 d display device 100 provided by the invention by the barrier material of described blocked area 121 is set to reflectorized material, thus the light of described blocked area 121 is reflexed to backlight module 13 and is reflected by the reflector layer of backlight module thus re-use, add the brightness of photic zone, thus improve the brightness of described 3 d display device 100 when not increasing the power of described backlight module 13.This improvement can extend the serviceable life of described backlight module 13, and improves serviceable life of described 3 d display device 100 and economize energy.In addition, the present invention, by arranging finedraw 1211 in blocked area 121 thus alleviating the formation of moire fringes, strengthens the viewing effect of client.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. alleviate a method for the moire fringes that 3 d display device produces, comprise the steps:
A, provide backlight module, described backlight module provides light source for 3 d display device;
B, provide slit grating, described slit grating is located at described backlight module light emission side, and described slit grating comprises the spaced blocked area that is arranged alternately and photic zone;
C, described blocked area comprise reflective material layer, and for the light of reflected illumination to described blocked area, described reflection ray is irradiated to backlight module;
D, the reflection ray being irradiated to described backlight module are reflected by described backlight module thus again utilize;
E, finedraw is set in each blocked area of described slit grating.
2. the method alleviating the moire fringes that 3 d display device produces according to claim 1, it is characterized in that, the width of described multiple blocked area is identical, and the width of described multiple photic zone is identical.
3. the method alleviating the moire fringes that 3 d display device produces according to claim 2, it is characterized in that, described reflective material layer is metal film layer or alloy film material layer.
4. the method alleviating the moire fringes that 3 d display device produces according to claim 1, is characterized in that, be provided with many finedraws in each described blocked area.
5. the method alleviating the moire fringes that 3 d display device produces according to claim 4, it is characterized in that, the width of many finedraws of described blocked area is incomplete same, and the spacing between adjacent finedraw is different mutually.
6. the method alleviating the moire fringes that 3 d display device produces according to claim 1, it is characterized in that, the finedraw width sum in each described blocked area is not more than 10% of described blocked area width.
7. the method alleviating the moire fringes that 3 d display device produces according to claim 1, it is characterized in that, adjacent described photic zone and the width sum of described blocked area are the pitch of described slit grating, and the ratio of the width of described photic zone and the pitch of described slit grating is between 20%-40%.
8. the method alleviating the moire fringes that 3 d display device produces according to claim 7, it is characterized in that, the width of described photic zone and the ratio of described slit grating pitch are between 20%-30%.
9. the method alleviating the moire fringes that 3 d display device produces according to claim 1, it is characterized in that, described backlight module comprises reflector layer.
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| CN201510750789.7A CN105353518A (en) | 2015-11-06 | 2015-11-06 | Method for reducing moire generated by stereoscopic display device |
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| CN201510750789.7A CN105353518A (en) | 2015-11-06 | 2015-11-06 | Method for reducing moire generated by stereoscopic display device |
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| CN107966754A (en) * | 2017-09-04 | 2018-04-27 | 四川大学 | The slit grating design method of moir patterns is weakened in bore hole LED screen 3D display |
| CN112711139A (en) * | 2021-01-04 | 2021-04-27 | 业成科技（成都）有限公司 | Near-to-eye display device and optical system thereof |
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