CN108776388B - Dual-view 3D display device and method based on gradient slit grating - Google Patents
Dual-view 3D display device and method based on gradient slit grating Download PDFInfo
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Abstract
本发明公开了基于渐变狭缝光栅的双视3D显示装置及方法，第1偏振单元和第2偏振单元在水平和垂直方向上交替排列，第1图像元和第2图像元分别与第1偏振单元和第2偏振单元对应且对齐，在不增大3D图像分辨率的前提下，使得3D图像的分辨率更加均匀，改善了显示效果；无需移动观看位置，通过佩戴不同的偏振眼镜来切换不同的3D图像；渐变狭缝光栅的孔径宽度从中间到两边逐渐增大，增大了亮度；渐变狭缝光栅的厚度从中间到两边逐渐增大，使得任意两个第1图像元发出的光线互不干扰，任意两个第2图像元发出的光线互不干扰，从而消除了串扰。
The invention discloses a dual-view 3D display device and method based on a gradient slit grating. The first polarization unit and the second polarization unit are alternately arranged in the horizontal and vertical directions. The first image element and the second image element are respectively connected with the first polarization unit. The unit corresponds to and is aligned with the second polarization unit, which makes the resolution of the 3D image more uniform and improves the display effect without increasing the resolution of the 3D image. There is no need to move the viewing position, and you can switch between different polarization glasses by wearing different polarization glasses. 3D image; the aperture width of the gradient slit grating gradually increases from the middle to both sides, increasing the brightness; the thickness of the gradient slit grating gradually increases from the middle to both sides, making the light emitted by any two first image elements interact with each other. No interference, the light emitted by any two second image elements does not interfere with each other, thus eliminating crosstalk.
Description
技术领域Technical field
本发明涉及双视3D显示，更具体地说，本发明涉及基于渐变狭缝光栅的双视3D显示装置及方法。The present invention relates to dual-view 3D display, and more specifically, the present invention relates to a dual-view 3D display device and method based on a gradient slit grating.
背景技术Background technique
集成成像双视3D显示是双视显示技术和集成成像3D显示技术的融合。它可以使得观看者在不同的观看方向上看到不同的3D画面。但是，现有的集成成像双视3D显示存在四个明显的缺点：1、两个3D视区分离，观看者需要移动观看位置才能看到另外一个3D画面；2、分辨率不均匀；3、存在串扰；4、亮度低。Integrated imaging dual-view 3D display is the fusion of dual-view display technology and integrated imaging 3D display technology. It allows viewers to see different 3D images in different viewing directions. However, the existing integrated imaging dual-view 3D display has four obvious shortcomings: 1. The two 3D viewing areas are separated, and the viewer needs to move the viewing position to see another 3D picture; 2. The resolution is uneven; 3. There is crosstalk; 4. Low brightness.
发明内容Contents of the invention
本发明的目的在于克服现有技术中所存在的上述不足，提供基于渐变狭缝光栅的双视3D显示装置及方法，基于该显示方法的显示装置可以在同一个视区内同时提供分辨率均匀的两个不同的无串扰3D图像。The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a dual-view 3D display device and method based on a gradient slit grating. The display device based on this display method can simultaneously provide uniform resolution in the same viewing area. of two different crosstalk-free 3D images.
为了实现上述发明目的，本发明提供了以下技术方案：In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
基于渐变狭缝光栅的双视3D显示装置，如附图1所示，其特征在于，包括显示屏，偏振阵列，渐变狭缝光栅，第1偏振眼镜，第2偏振眼镜；所述显示屏，所述偏振阵列和所述渐变狭缝光栅的中心均对应且对齐，所述渐变狭缝光栅中，任意一列狭缝的厚度相同，任意一列狭缝的孔径宽度相同，狭缝的厚度和孔径宽度从中间到两边逐渐增大；所述偏振阵列由第1偏振单元和第2偏振单元在水平和垂直方向上交替排列组成，所述第1偏振单元与所述第2偏振单元的偏振方向正交，所述偏振阵列中水平和垂直方向上相邻的偏振单元的偏振方向正交，如附图2所示；所述第1偏振眼镜与所述第1偏振单元的偏振方向相同，所述第2偏振眼镜与所述第2偏振单元的偏振方向相同；A dual-view 3D display device based on a gradient slit grating, as shown in Figure 1, is characterized in that it includes a display screen, a polarizing array, a gradient slit grating, first polarizing glasses, and second polarizing glasses; the display screen, The centers of the polarizing array and the gradient slit grating are corresponding and aligned. In the gradient slit grating, the thickness of the slits in any row is the same, and the aperture width of any row of slits is the same. The thickness and aperture width of the slits are the same. It gradually increases from the middle to both sides; the polarization array is composed of a first polarization unit and a second polarization unit alternately arranged in the horizontal and vertical directions, and the polarization directions of the first polarization unit and the second polarization unit are orthogonal , the polarization directions of adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal, as shown in Figure 2; the polarization directions of the first polarized glasses and the first polarization unit are the same, and the polarization directions of the first polarization unit are the same. 2. The polarization direction of the polarized glasses and the second polarizing unit are the same;
所述显示屏用于显示微图像阵列，所述微图像阵列由第1图像元和第2图像元在水平和垂直方向上交替排列组成，如附图3所示；所述第1图像元通过第1三维场景获取，所述第2图像元通过第2三维场景获取；所述第1图像元和所述第2图像元分别与所述第1偏振单元和所述第2偏振单元对应且对齐；The display screen is used to display a micro-image array. The micro-image array is composed of a first image element and a second image element arranged alternately in the horizontal and vertical directions, as shown in Figure 3; the first image element passes The first three-dimensional scene is acquired, and the second image element is acquired through the second three-dimensional scene; the first image element and the second image element correspond to and are aligned with the first polarization unit and the second polarization unit respectively. ;
在所述微图像阵列中，位于奇数列的第1图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in odd-numbered columns cannot pass through the slits corresponding to the first image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第1图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in even-numbered columns cannot pass through the slits corresponding to the first image elements located in other even-numbered columns;
在所述微图像阵列中，位于奇数列的第2图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第2图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the second image elements located in odd-numbered columns cannot pass through the slits corresponding to the second image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第2图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第2图像元对应的狭缝。In the micro-image array, the light emitted from the leftmost and rightmost side of the second image element located in the even-numbered columns cannot pass through the slits corresponding to the second image elements located in other even-numbered columns.
优选的，第1图像元的节距、第2图像元的节距、第1偏振单元的节距、第2偏振单元的节距、狭缝的节距均为p，渐变狭缝光栅包含m个单元，显示屏与渐变狭缝光栅的间距为g，位于渐变狭缝光栅上第i列狭缝的孔径宽度为wi，则渐变狭缝光栅上第i列狭缝的厚度ti由下式计算得到：Preferably, the pitch of the first image element, the pitch of the second image element, the pitch of the first polarization unit, the pitch of the second polarization unit, and the pitch of the slits are all p, and the gradient slit grating includes m units, the distance between the display screen and the gradient slit grating is g, the aperture width of the i-th column slits on the gradient slit grating is w i , then the thickness t i of the i-th column slits on the gradient slit grating is from The formula is calculated as follows:
其中，i是小于或等于m的正整数。where i is a positive integer less than or equal to m.
优选的，第1图像元的节距、第2图像元的节距、第1偏振单元的节距、第2偏振单元的节距、狭缝的节距均为p，渐变狭缝光栅包含m个单元，位于渐变狭缝光栅上第i列狭缝的孔径宽度为wi，显示屏的亮度为b，则第1三维图像和第2三维图像的亮度a计算如下：Preferably, the pitch of the first image element, the pitch of the second image element, the pitch of the first polarization unit, the pitch of the second polarization unit, and the pitch of the slits are all p, and the gradient slit grating includes m units, the aperture width of the ith column slit on the gradient slit grating is w i , and the brightness of the display screen is b. Then the brightness a of the first three-dimensional image and the second three-dimensional image is calculated as follows:
其中，i是小于或等于m的正整数。where i is a positive integer less than or equal to m.
优选的，所述偏振阵列与所述渐变狭缝光栅紧密贴合。Preferably, the polarizing array and the gradient slit grating are closely attached.
基于渐变狭缝光栅的双视3D显示方法，包括：Dual-view 3D display method based on gradient slit grating, including:
偏振方向正交的第1偏振单元和第2偏振单元在水平和垂直方向上交替排列，所述偏振阵列中水平和垂直方向上相邻的偏振单元的偏振方向正交，The first polarization unit and the second polarization unit with orthogonal polarization directions are alternately arranged in the horizontal and vertical directions, and the polarization directions of adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal,
通过第1三维场景和第2三维场景获取的所述第1图像元和所述第2图像元分别与所述第1偏振单元和所述第2偏振单元对应且对齐；The first image element and the second image element acquired through the first three-dimensional scene and the second three-dimensional scene respectively correspond to and are aligned with the first polarization unit and the second polarization unit;
所述第1偏振单元将所述第1图像元发出的光线调制为偏振光，上述偏振光通过所述第1图像元对应的狭缝重建第1三维图像，且只能通过所述第1偏振眼镜看到；The first polarization unit modulates the light emitted by the first image element into polarized light. The polarized light passes through the slit corresponding to the first image element to reconstruct the first three-dimensional image, and can only pass through the first polarized light. Glasses see;
所述第2偏振单元将所述第2图像元发出的光线调制为偏振光，上述偏振光通过所述第2图像元对应的狭缝重建第2三维图像，且只能通过所述第2偏振眼镜看到；The second polarization unit modulates the light emitted by the second image element into polarized light. The polarized light passes through the slit corresponding to the second image element to reconstruct a second three-dimensional image, and can only pass through the second polarized light. Glasses see;
所述渐变狭缝光栅中，任意一列狭缝的厚度相同，任意一列狭缝的孔径宽度相同，狭缝的厚度和孔径宽度从中间到两边逐渐增大；In the gradient slit grating, the thickness of any row of slits is the same, the aperture width of any row of slits is the same, and the thickness and aperture width of the slits gradually increase from the middle to both sides;
在所述微图像阵列中，位于奇数列的第1图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in odd-numbered columns cannot pass through the slits corresponding to the first image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第1图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in even-numbered columns cannot pass through the slits corresponding to the first image elements located in other even-numbered columns;
在所述微图像阵列中，位于奇数列的第2图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第2图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the second image elements located in odd-numbered columns cannot pass through the slits corresponding to the second image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第2图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第2图像元对应的狭缝。In the micro-image array, the light emitted from the leftmost and rightmost side of the second image element located in the even-numbered columns cannot pass through the slits corresponding to the second image elements located in other even-numbered columns.
与现有技术相比，本发明的有益效果：Compared with the existing technology, the beneficial effects of the present invention are:
1、本发明中的第1偏振单元和第2偏振单元在水平和垂直方向上交替排列，第1图像元和第2图像元分别与第1偏振单元和第2偏振单元对应且对齐，在不增大3D图像分辨率的前提下，使得3D图像的分辨率更加均匀，改善了显示效果；2、进一步的，无需移动观看位置，通过佩戴不同的偏振眼镜来切换不同的3D图像；1. The first polarization unit and the second polarization unit in the present invention are alternately arranged in the horizontal and vertical directions, and the first image element and the second image element respectively correspond to and are aligned with the first polarization unit and the second polarization unit. On the premise of increasing the resolution of the 3D image, the resolution of the 3D image is made more uniform and the display effect is improved; 2. Furthermore, there is no need to move the viewing position, and different 3D images can be switched by wearing different polarized glasses;
3、进一步的，渐变狭缝光栅的孔径宽度从中间到两边逐渐增大，增大了亮度；4、进一步的，渐变狭缝光栅的厚度从中间到两边逐渐增大，使得任意两个第1图像元发出的光线互不干扰，任意两个第2图像元发出的光线互不干扰，从而消除了串扰。3. Further, the aperture width of the gradient slit grating gradually increases from the center to both sides, increasing the brightness; 4. Further, the thickness of the gradient slit grating gradually increases from the center to both sides, so that any two first The light emitted by the image elements does not interfere with each other, and the light emitted by any two second image elements does not interfere with each other, thus eliminating crosstalk.
附图说明Description of drawings
附图1为本发明的双视3D显示的结构图Figure 1 is a structural diagram of the dual-view 3D display of the present invention.
附图2为本发明的偏振阵列的排列示意图Figure 2 is a schematic diagram of the arrangement of the polarizing array of the present invention.
附图3为本发明的微图像阵列的排列示意图Figure 3 is a schematic diagram of the arrangement of the microimage array of the present invention.
上述附图中的图示标号为：The icon numbers in the above drawings are:
1显示屏，2偏振阵列，3渐变狭缝光栅，4第1偏振眼镜，5第2偏振眼镜，6第1偏振单元，7第2偏振单元，8微图像阵列，9第1图像元，10第2图像元，11第1三维图像，12第2三维图像。1 display screen, 2 polarizing array, 3 gradient slit grating, 4 1st polarized glasses, 5 2nd polarized glasses, 6 1st polarizing unit, 7 2nd polarizing unit, 8 micro image array, 9 1st image element, 10 The second image element, 11 the first three-dimensional image, and the 12 second three-dimensional image.
具体实施方式Detailed ways
下面详细说明利用本发明的一个典型实施例，对本发明进行进一步的具体描述。有必要在此指出的是，以下实施例只用于本发明做进一步的说明，不能理解为对本发明保护范围的限制，该领域技术熟练人员根据上述本发明内容对本发明做出一些非本质的改进和调整，仍属于本发明的保护范围。The following detailed description uses a typical embodiment of the present invention to further describe the present invention in detail. It is necessary to point out here that the following examples are only used to further illustrate the present invention and cannot be understood as limiting the protection scope of the present invention. Those skilled in the field will make some non-essential improvements to the present invention based on the above content of the present invention. and adjustments, still belong to the protection scope of the present invention.
基于渐变狭缝光栅的双视3D显示装置，如附图1所示，其特征在于，包括显示屏，偏振阵列，渐变狭缝光栅，第1偏振眼镜，第2偏振眼镜；所述显示屏，所述偏振阵列和所述渐变狭缝光栅的中心均对应且对齐，所述渐变狭缝光栅中，任意一列狭缝的厚度相同，任意一列狭缝的孔径宽度相同，狭缝的厚度和孔径宽度从中间到两边逐渐增大；所述偏振阵列由第1偏振单元和第2偏振单元在水平和垂直方向上交替排列组成，所述第1偏振单元与所述第2偏振单元的偏振方向正交，所述偏振阵列中水平和垂直方向上相邻的偏振单元的偏振方向正交，如附图2所示；所述第1偏振眼镜与所述第1偏振单元的偏振方向相同，所述第2偏振眼镜与所述第2偏振单元的偏振方向相同；A dual-view 3D display device based on a gradient slit grating, as shown in Figure 1, is characterized in that it includes a display screen, a polarizing array, a gradient slit grating, first polarizing glasses, and second polarizing glasses; the display screen, The centers of the polarizing array and the gradient slit grating are corresponding and aligned. In the gradient slit grating, the thickness of the slits in any row is the same, and the aperture width of any row of slits is the same. The thickness and aperture width of the slits are the same. It gradually increases from the middle to both sides; the polarization array is composed of a first polarization unit and a second polarization unit alternately arranged in the horizontal and vertical directions, and the polarization directions of the first polarization unit and the second polarization unit are orthogonal , the polarization directions of adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal, as shown in Figure 2; the polarization directions of the first polarized glasses and the first polarization unit are the same, and the polarization directions of the first polarization unit are the same. 2. The polarization direction of the polarized glasses and the second polarizing unit are the same;
所述显示屏用于显示微图像阵列，所述微图像阵列由第1图像元和第2图像元在水平和垂直方向上交替排列组成，如附图3所示；所述第1图像元通过第1三维场景获取，所述第2图像元通过第2三维场景获取；所述第1图像元和所述第2图像元分别与所述第1偏振单元和所述第2偏振单元对应且对齐；The display screen is used to display a micro-image array. The micro-image array is composed of a first image element and a second image element arranged alternately in the horizontal and vertical directions, as shown in Figure 3; the first image element passes The first three-dimensional scene is acquired, and the second image element is acquired through the second three-dimensional scene; the first image element and the second image element correspond to and are aligned with the first polarization unit and the second polarization unit respectively. ;
在所述微图像阵列中，位于奇数列的第1图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in odd-numbered columns cannot pass through the slits corresponding to the first image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第1图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in even-numbered columns cannot pass through the slits corresponding to the first image elements located in other even-numbered columns;
在所述微图像阵列中，位于奇数列的第2图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第2图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the second image elements located in odd-numbered columns cannot pass through the slits corresponding to the second image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第2图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第2图像元对应的狭缝。In the micro-image array, the light emitted from the leftmost and rightmost side of the second image element located in the even-numbered columns cannot pass through the slits corresponding to the second image elements located in other even-numbered columns.
优选的，第1图像元的节距、第2图像元的节距、第1偏振单元的节距、第2偏振单元的节距、狭缝的节距均为p，渐变狭缝光栅包含m个单元，显示屏与渐变狭缝光栅的间距为g，位于渐变狭缝光栅上第i列狭缝的孔径宽度为wi，则渐变狭缝光栅上第i列狭缝的厚度ti由下式计算得到：Preferably, the pitch of the first image element, the pitch of the second image element, the pitch of the first polarization unit, the pitch of the second polarization unit, and the pitch of the slits are all p, and the gradient slit grating includes m units, the distance between the display screen and the gradient slit grating is g, the aperture width of the i-th column slits on the gradient slit grating is w i , then the thickness t i of the i-th column slits on the gradient slit grating is from The formula is calculated as follows:
其中，i是小于或等于m的正整数。where i is a positive integer less than or equal to m.
优选的，第1图像元的节距、第2图像元的节距、第1偏振单元的节距、第2偏振单元的节距、狭缝的节距均为p，渐变狭缝光栅包含m个单元，位于渐变狭缝光栅上第i列狭缝的孔径宽度为wi，显示屏的亮度为b，则双视3D显示装置的光学效率a计算如下：Preferably, the pitch of the first image element, the pitch of the second image element, the pitch of the first polarization unit, the pitch of the second polarization unit, and the pitch of the slits are all p, and the gradient slit grating includes m units, the aperture width of the i-th column slit on the gradient slit grating is w i , and the brightness of the display screen is b. Then the optical efficiency a of the dual-view 3D display device is calculated as follows:
其中，i是小于或等于m的正整数。where i is a positive integer less than or equal to m.
优选的，所述偏振阵列与所述渐变狭缝光栅紧密贴合。Preferably, the polarizing array and the gradient slit grating are closely attached.
基于渐变狭缝光栅的双视3D显示方法，包括：Dual-view 3D display method based on gradient slit grating, including:
偏振方向正交的第1偏振单元和第2偏振单元在水平和垂直方向上交替排列，所述偏振阵列中水平和垂直方向上相邻的偏振单元的偏振方向正交，The first polarization unit and the second polarization unit with orthogonal polarization directions are alternately arranged in the horizontal and vertical directions, and the polarization directions of adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal,
通过第1三维场景和第2三维场景获取的所述第1图像元和所述第2图像元分别与所述第1偏振单元和所述第2偏振单元对应且对齐；The first image element and the second image element acquired through the first three-dimensional scene and the second three-dimensional scene respectively correspond to and are aligned with the first polarization unit and the second polarization unit;
所述第1偏振单元将所述第1图像元发出的光线调制为偏振光，上述偏振光通过所述第1图像元对应的狭缝重建第1三维图像，且只能通过所述第1偏振眼镜看到；The first polarization unit modulates the light emitted by the first image element into polarized light. The polarized light passes through the slit corresponding to the first image element to reconstruct the first three-dimensional image, and can only pass through the first polarized light. Glasses see;
所述第2偏振单元将所述第2图像元发出的光线调制为偏振光，上述偏振光通过所述第2图像元对应的狭缝重建第2三维图像，且只能通过所述第2偏振眼镜看到；The second polarization unit modulates the light emitted by the second image element into polarized light. The polarized light passes through the slit corresponding to the second image element to reconstruct a second three-dimensional image, and can only pass through the second polarized light. Glasses see;
所述渐变狭缝光栅中，任意一列狭缝的厚度相同，任意一列狭缝的孔径宽度相同，狭缝的厚度和孔径宽度从中间到两边逐渐增大；In the gradient slit grating, the thickness of any row of slits is the same, the aperture width of any row of slits is the same, and the thickness and aperture width of the slits gradually increase from the middle to both sides;
在所述微图像阵列中，位于奇数列的第1图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in odd-numbered columns cannot pass through the slits corresponding to the first image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第1图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第1图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the first image elements located in even-numbered columns cannot pass through the slits corresponding to the first image elements located in other even-numbered columns;
在所述微图像阵列中，位于奇数列的第2图像元的最左边和最右边发出的光线不能通过位于其他奇数列的第2图像元对应的狭缝；In the micro-image array, the light emitted from the leftmost and rightmost of the second image elements located in odd-numbered columns cannot pass through the slits corresponding to the second image elements located in other odd-numbered columns;
在所述微图像阵列中，位于偶数列的第2图像元的最左边和最右边发出的光线不能通过位于其他偶数列的第2图像元对应的狭缝。In the micro-image array, the light emitted from the leftmost and rightmost side of the second image element located in the even-numbered columns cannot pass through the slits corresponding to the second image elements located in other even-numbered columns.
微图像阵列、偏振阵列均包含10×10个单元，其中，水平方向上10个单元，垂直方向上10个单元，渐变狭缝光栅包含10个单元，第1图像元的节距、第2图像元的节距、第1偏振单元的节距、第2偏振单元的节距、狭缝的节距均为p＝4mm，显示屏与渐变狭缝光栅的间距为g＝4mm，位于渐变狭缝光栅中第1～10列针孔的孔径宽度分别为0.8mm、0.7mm、0.6mm、0.5mm、0.4mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm，显示屏的亮度为b＝400cd/m2；则由公式计算得到，渐变针孔阵列中第1～10列针孔的厚度分别为0.571mm、0.496mm、0.421mm、0.349mm、0.275mm、0.275mm、0.349mm、0.421mm、0.496mm、0.571mm；由公式/>计算得到第1三维图像和第2三维图像的亮度a均为30cd/m2；第1三维图像和第2三维图像均有10行和10列像素；第1三维图像和第2三维图像每一行的像素数目均为5个，每一列的像素数目均为5个；基于上述参数的传统集成成像双视3D显示中，第1三维图像奇数行的像素数目为10个，偶数行的像素数目为0个；第2三维图像奇数行的像素数目为0个，偶数行的像素数目为10个，第1三维图像和第2三维图像的亮度均为20cd/m2。Both the micro-image array and the polarization array contain 10 × 10 units, including 10 units in the horizontal direction and 10 units in the vertical direction. The gradient slit grating contains 10 units. The pitch of the first image unit and the second image unit are The pitch of the element, the pitch of the first polarizing unit, the pitch of the second polarizing unit, and the pitch of the slit are all p=4mm. The distance between the display screen and the gradient slit grating is g=4mm, located in the gradient slit. The aperture widths of pinholes in the 1st to 10th columns of the grating are 0.8mm, 0.7mm, 0.6mm, 0.5mm, 0.4mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm respectively, and the brightness of the display screen is b =400cd/m 2 ; then the formula It is calculated that the thickness of the pinholes in the 1st to 10th columns of the gradient pinhole array are 0.571mm, 0.496mm, 0.421mm, 0.349mm, 0.275mm, 0.275mm, 0.349mm, 0.421mm, 0.496mm, 0.571mm respectively; from Formula/> The calculated brightness a of the first three-dimensional image and the second three-dimensional image is both 30cd/m 2 ; the first three-dimensional image and the second three-dimensional image both have 10 rows and 10 columns of pixels; each row of the first three-dimensional image and the second three-dimensional image The number of pixels is 5, and the number of pixels in each column is 5; in the traditional integrated imaging dual-view 3D display based on the above parameters, the number of pixels in the odd rows of the first three-dimensional image is 10, and the number of pixels in the even rows is 0; the number of pixels in the odd-numbered rows of the second three-dimensional image is 0, and the number of pixels in the even-numbered rows is 10. The brightness of the first three-dimensional image and the second three-dimensional image is both 20cd/m 2 .
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| CN109298538B (en) * | 2018-11-20 | 2024-03-26 | 成都航空职业技术学院 | Dual-view 3D display device with uniform optical efficiency |
| CN109298536B (en) * | 2018-11-20 | 2023-09-12 | 成都航空职业技术学院 | A one-dimensional dual-view 3D display device |
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| CN109239936B (en) * | 2018-11-20 | 2023-10-10 | 成都航空职业技术学院 | Integrated imaging 3D display device based on gradient grating |
| CN109459865B (en) * | 2018-11-20 | 2024-03-26 | 成都航空职业技术学院 | A 3D display device |
| CN109298537B (en) * | 2018-11-20 | 2024-03-19 | 成都工业学院 | 3D display device based on backlight |
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| CN113703177B (en) * | 2021-09-11 | 2022-05-17 | 成都工业学院 | 3D display device based on composite slit grating |
| CN113741054B (en) * | 2021-09-11 | 2024-05-14 | 成都工业学院 | High-resolution and wide-viewing-angle 3D display device |
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