CN202171689U - Grating type stereoscopic display device - Google Patents

Abstract

The utility model belongs to the imaging technology field, and provides a grating type stereoscopic display device, comprising a display and No.1 to No. n grating sheets attached to a light-emitting side of the display orderly, and the n is a positive integer greater than 1. Because the grating type stereoscopic display device provided by the utility model is equipped with at least two grating sheets, the image stereoscopic display can be realized by utilizing any two grating sheets, and by reasonably arranging the attaching distances between each grating sheet and the display, the restrictive relation of the attaching distance and observing distance can be eliminated. Compared with the grating type stereoscopic display device provided by the prior art, the attaching distances between the grating sheets and the display are increased, and the image display effect is enhanced.

Description

A kind of raster pattern 3 d display device

Technical field

The utility model belongs to technical field of imaging, relates in particular to a kind of raster pattern 3 d display device.

Background technology

Present LCD is widely used in various demonstrations field, like various types of communication product, onboard system etc. with advantage such as its low-power consumption, fuselage be frivolous and enjoy user's favor.

Fig. 1 shows the structural principle of the raster pattern 3 d display device that prior art provides, and it comprises a display and one and the display lenticular lenses of fitting.The strange row bar shaped pixel of display is formed the set of diagrams picture jointly; The even row bar shaped pixel of display is formed another picture group picture jointly; The image that strange row bar shaped pixel is formed arrives in the preceding observer's of display the left eye through the transmissive slit of lenticular lenses; The image of idol row bar shaped pixel groups arrives in the right eye of preceding this observer's eye of display through the transmissive slit of lenticular lenses, thereby realizes the function of stereo display.

In this raster pattern 3 d display device that prior art provides; The pitch of supposing lenticular lenses is p; The size of display picture element or sub-pixel is m, and observer's interocular distance is e before the display, and the applying distance between lenticular lenses and display is d; Viewing distance before lenticular lenses and the display between the observer is 1, then has:

$p=2m*\frac{e}{e+m}$

$d=l*\frac{m}{e}$

Because for the lenticular lenses of confirming, the pitch p of lenticular lenses is a determined value, the desirable constant 65mm of interocular distance e; Then can know by following formula; Applying is the parameter of a pair of mutual restriction apart from d and viewing distance 1, and promptly viewing distance 1 requires near the time, and fitting must be enough little apart from d.For example: work as m=0.04525mm, viewing distance 1 is 400mm, and when considering 1.5 times of refractive indexes of glass, can get theoretic applying is 0.42mm apart from d.Yet because display itself has generally had the thickness of 0.4mm, consider that again the thickness of lenticular lenses generally can reach 0.2mm, thereby make actual the applying can not satisfy the suitable distance of theory demand far away apart from d.Because there is the problem of fitting apart from d and viewing distance 1 mutual restriction in this raster pattern 3 d display device that prior art provides, make its product design difficulty high, and display effect is poor.

Disclosed above-mentioned information only is used to increase the understanding to the utility model background technology in this background technology this part, so it possibly comprise those of ordinary skills' known systems that does not constitute this state.

The utility model content

The purpose of the utility model embodiment is to provide a kind of raster pattern 3 d display device; There is the problem of applying distance and viewing distance mutual restriction in the raster pattern 3 d display device that being intended to solve prior art provides; Make its product design difficulty high, the problem of display effect difference.

The utility model embodiment is achieved in that a kind of raster pattern 3 d display device, and said device comprises display, and said device also comprises first lenticular lenses to the n lenticular lenses that fits in said display lighting side in order, and n is the positive integer greater than 1.

Preferably, the applying distance between said first lenticular lenses and the said display is d1, and the applying distance between said n lenticular lenses and the said display is dn, and dn=(2n-1) d1.

In addition; Applying distance between said first lenticular lenses and said display is d1, and the applying distance between said n lenticular lenses and the said display is dn; The gap is than parameter x=dn/ (1+d1); Interocular distance is e, and when the size of said display picture element or sub-pixel was m, the grating aperture opening ratio of said n lenticular lenses was that α satisfies: $\mathrm{\α}=\frac{\mathrm{Xe}}{2m(1-x)}-1.$

Said lenticular lenses can comprise:

Transparent membrane; And

Be coated on the shield bars that a plurality of wide cuts of said transparent membrane upper surface and/or lower surface equate, said a plurality of shield bars be parallel to each other and adjacent shield bars between slit width equate.

Further, said transparent membrane can be the transparent membrane of being processed by glass or acrylic.

Further, said shield bars can be the shield bars of being processed by propylene resin.

Because the raster pattern 3 d display device that the utility model provides is provided with at least two lenticular lenses; Utilize wherein any two lenticular lenses can realize the stereo display of image; Through the applying distance between each lenticular lenses of reasonable disposition and display, can eliminate the restricting relation of applying distance and viewing distance, the raster pattern 3 d display device that provides compared to prior art; Applying between lenticular lenses and the display has strengthened the display effect of image apart from increase.

Description of drawings

Fig. 1 is the structure principle chart of the raster pattern 3 d display device that provides of prior art;

Fig. 2 is the structure principle chart of the raster pattern 3 d display device that provides of the utility model.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

In order to overcome the problem that prior art exists; The raster pattern 3 d display device that the utility model provides is provided with at least two lenticular lenses; Utilize at least two lenticular lenses to realize the stereo display of image; Through the applying distance between each lenticular lenses of reasonable disposition and display, can eliminate the restricting relation of applying distance and viewing distance.

Particularly, Fig. 2 shows the structural principle of the raster pattern 3 d display device that the utility model provides, and for the ease of explanation, only shows the part relevant with the utility model.

The raster pattern 3 d display device that the utility model provides comprises: display 11; And at least two lenticular lenses 12 that fit in display 11 emission side in order.Lenticular lenses 12 further comprises: transparent membrane; And the shield bars that equates of a plurality of wide cuts that are coated on this transparent membrane upper surface and/or lower surface, these a plurality of shield bars be parallel to each other and adjacent shield bars between slit width equate; The image that the strange row bar shaped pixel of display 11 is formed forms left eye display frame through the slit of at least two lenticular lenses 12 in order; The image that the even row bar shaped pixel of display 11 is formed forms right eye display frame through the slit of at least two lenticular lenses 12 in order.

Because the raster pattern 3 d display device that the utility model provides is provided with at least two lenticular lenses; Utilize wherein any two lenticular lenses can realize the stereo display of image; Suppose that these at least two lenticular lenses are for first lenticular lenses that fits in display 11 emission side in order, second lenticular lenses, until n (n for greater than 1 positive integer) lenticular lenses; Applying distance between itself and the display 11 is respectively d1, d2 to dn, then can be got by optical path analysis, and dn satisfies: dn=(2n-1) d1; The raster pattern 3 d display device that provides compared to prior art; Applying between lenticular lenses and the display has been eliminated the restricting relation of applying distance with viewing distance apart from increase, has strengthened the display effect of image.

Further; Because in actual design process, the applying between n lenticular lenses and the display 11 possibly exist apart from dn and is not the situation of d1 integral multiple, at this moment; One restriction condition is set, can realizes the design of applying distance arbitrarily between n lenticular lenses and the display 11.

Particularly, the grating aperture opening ratio of supposing n lenticular lenses is α, and the gap then has this restrictive condition to be than parameter x=dn/ (1+d1):

$\mathrm{\α}=\frac{\mathrm{xe}}{2m(1-x)}-1$

In the utility model, the wide cut of shield bars is confirmed by the relation of visual imaging ray cast according to the bar shaped pixel and the distance between shield bars and the display 11 of display 11 on the lenticular lenses 12.

In the utility model, lenticular lenses 12 can further include: the protective seam that is coated on the shield bars surface.

In the utility model, transparent membrane can be processed by flexibility or hard material, and in the utility model, transparent membrane is preferably processed by transparent glass or acrylic material, so that transparent membrane has higher transmittance.

In the utility model, shield bars is preferably processed by propylene resin.

Because the raster pattern 3 d display device that the utility model provides is provided with at least two lenticular lenses; Utilize wherein any two lenticular lenses can realize the stereo display of image; Through the applying distance between each lenticular lenses of reasonable disposition and display, can eliminate the restricting relation of applying distance and viewing distance, the raster pattern 3 d display device that provides compared to prior art; Applying between lenticular lenses and the display has strengthened the display effect of image apart from increase.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims (6)

1. raster pattern 3 d display device, said device comprises display, it is characterized in that, and said device also comprises first lenticular lenses to the n lenticular lenses that fits in said display lighting side in order, and n is the positive integer greater than 1.

2. raster pattern 3 d display device as claimed in claim 1 is characterized in that, the applying distance between said first lenticular lenses and the said display is d1, and the applying distance between said n lenticular lenses and the said display is dn, and dn=(2n-1) d1.

3. raster pattern 3 d display device as claimed in claim 1; It is characterized in that; Applying distance between said first lenticular lenses and said display is d1; Applying distance between said n lenticular lenses and the said display is dn;, the gap is than parameter x=dn/ (1+d1), and interocular distance is e; When the size of said display picture element or sub-pixel was m, the grating aperture opening ratio of said n lenticular lenses was that α satisfies:

4. like each described raster pattern 3 d display device of claim 1 to 3, it is characterized in that said lenticular lenses comprises:

Transparent membrane; And

Be coated on the shield bars that a plurality of wide cuts of said transparent membrane upper surface and/or lower surface equate, said a plurality of shield bars be parallel to each other and adjacent shield bars between slit width equate.

5. raster pattern 3 d display device as claimed in claim 4 is characterized in that, said transparent membrane is the transparent membrane of being processed by glass or acrylic.

6. raster pattern 3 d display device as claimed in claim 4 is characterized in that, said shield bars is the shield bars of being processed by propylene resin.

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