CN101980059A - Light transmission panel and display image correcting method thereof - Google Patents
Light transmission panel and display image correcting method thereof Download PDFInfo
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- CN101980059A CN101980059A CN 201010270640 CN201010270640A CN101980059A CN 101980059 A CN101980059 A CN 101980059A CN 201010270640 CN201010270640 CN 201010270640 CN 201010270640 A CN201010270640 A CN 201010270640A CN 101980059 A CN101980059 A CN 101980059A
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Abstract
The invention belongs to the technical field of splicing an image forward display unit, a zooming unit and a display unit and in particular relates to a light transmission panel which can be applied to a common display unit and a display image correcting method thereof. The light transmission panel comprises a light guide layer consisting of one or more layers of light transmission plates of which the surface is provided with a microprism, non-spherical lens, or micro non-spherical lens array, wherein the upper surface of the light guide layer is matched with a scattering layer, and the lower surface of the light guide layer is matched with a condensation layer; and the scattering layer, the light guide layer and the condensation layer are integrated into a whole or separated. The light transmission panel of the invention has a simple structure, reasonable design, and low production cost and is convenient to install, has good visual effect of picture and is suitable for panel display equipment, such as a liquid crystal display (LCD), a plasma display panel (PDP), a digital light processing (DLP), a cathode ray tube (CRT), an organic liquid crystal display (OLCD) and the like; moreover, the display image correcting method is easy to operate, gaps between light transmission panels are eliminated, and the whole picture effect of large screen is achieved.
Description
Technical field
The invention belongs to image reach demonstration, convergent-divergent, display unit splicing field, be specifically related to a kind ofly can be applied to the light penetrating panel of common display unit and the image antidote of demonstration thereof.
Background technology
The display unit of CRT, LCD, PDP, DLP more and more is applied in our the daily life work because their intrinsic physical characteristicss (such as: frame is arranged, easily pulverize, easily scratch) restriction on many application scenarios its wider application of putting.Application number be 200810219683.4 and application number be the seamless splicing scheme that has proposed the LCD display unit in 200810220116.0 two patents, but these two kinds of schemes all have the limitation of its use, the patent scheme of front need be introduced the external point light source, affected by environment big, mounting structure is complicated, inconvenient debugging and can only be applied to the LCD display unit, be unfavorable for producing in batches; That patent scheme profit of back can only be applicable to specific LCD unit, simultaneously they can't overcome the ghost image that has utilized Fresnel Lenses, produced, the problem of Moire fringe (moir) technically; Can't solve the faint light source problem that the brightness of imaging system is lowered rapidly, sharpness lowers after by the rear-projection curtain.
Summary of the invention
Problem at the prior art existence, the objective of the invention is to design the technical scheme of the antidote that a kind of light penetrating panel and display image thereof are provided, this light penetrating panel is simple in structure, production cost is low, easy for installation, the antidote of this display image is simple to operate and the image of good visual effect can be provided.
Described a kind of light penetrating panel, it is characterized in that comprising by one or more layers surface and be provided with the optical waveguide layer that the light-passing board of microprism, non-spherical lens or little non-spherical lens array constitutes, described optical waveguide layer upper surface is equipped with scattering layer, the optical waveguide layer lower surface is equipped with light collecting layer, and above-mentioned scattering layer, optical waveguide layer and light collecting layer are integrated or divide body structure.
The above light-passing board of one deck is set in the described optical waveguide layer, and described light-passing board surface is provided with microprism, and described microprism is linear microprism, and the groove of the microprism on two-layer up and down light-passing board surface moves towards interlaced or be vertical mutually.
Described a kind of light penetrating panel is characterized in that the light-passing board surface in the described optical waveguide layer is provided with non-spherical lens, and described non-spherical lens is aspheric surface convex mirror or aspherical concave mirror.
Described a kind of light penetrating panel, it is characterized in that light-passing board upper surface or lower surface in the described optical waveguide layer are provided with horizontal linear microprism and vertical linear microprism, horizontal linear microprism and vertical linear microprism intersect mutually and constitute rectangular pyramid unit prisms array group.
Described a kind of light penetrating panel, it is characterized in that light-passing board upper surface or lower surface both sides up and down all around in the described optical waveguide layer are provided with horizontal linear microprism, the right and left is provided with the vertical linear microprism, and horizontal linear microprism and vertical linear microprism extend to intersect mutually on four angles of light-passing board and constitute one group of rectangular pyramid unit prisms respectively.
Described a kind of light penetrating panel, it is characterized in that light-passing board upper surface or lower surface both sides up and down all around in the described optical waveguide layer are provided with horizontal linear microprism, the right and left is provided with the vertical linear microprism, is connected by the arc microprism that is provided with between adjacent horizontal linear microprism and the vertical linear microprism.
Described a kind of light penetrating panel is characterized in that described scattering layer is light-passing board or the light-transmissive film that epirelief or recessed cambered surface array group constitute by the surface.
Described a kind of light penetrating panel is characterized in that the upper surface of described light collecting layer or lower surface constitute by the plano-concave of an aspheric surface or sphere, concave-concave, biconvex, plano-convex, concave-convex lens or by plano-concave, concave-concave, biconvex, plano-convex, the concave-convex lens array group of aspheric surface or sphere.
Described a kind of light penetrating panel is characterized in that being provided with in the described light collecting layer hollow printing opacity post array group.
Described a kind of light penetrating panel is characterized in that the lower surface of described light collecting layer or upper surface are made of a Fresnel lens or a little array of fresnel lenses group that plays the optically focused effect.
The image antidote of described a kind of light penetrating panel, it is characterized in that on the described light collecting layer lower surface flat-panel display devices being set, be equipped with the image rectifier of incoming image input data on the described flat-panel display devices, described flat-panel display devices is LCD, PDP, DLP, CRT or OLCD, and its concrete image rectification step is as follows:
1) accurately measure the long L of original image viewing area, wide W with known optical instrumentation, image is by viewing area La, wide Wa behind the light penetrating panel, optics mean refractive index n, average transmittance a and the average transmittance r of light penetrating panel;
2) with known given N frame test pattern data input plane display device, with i pixel coordinate in the former displayed map of known device measuring: (Xi, Yi), the optical strength of this point is Mi, the coordinate of the pixel by the correspondence behind the light penetrating panel is (Xai, Yai), the strong Mai of the optics of this point
Then the offset system of pixel is: directions X Lxi=(Xai-Xi)/L
Y direction Lyi=(Yai-Yi)/W
The modified value of pixel light intensity is ni=(Mi-Mai);
3) to above-mentioned by drawing corresponding Lxi, Lyi, ni average RLxi, RLyi, Rni and add corresponding correction factor Lxdi, Lydi, ndi behind the N frame test pattern data test, obtain Dx=RLxi+Lxdi; Dy=RLyi+Lydi, Dn=Rni+ndi,
Then the final rectification formula of i point is:
Xai＝Xi+Dx
Yai＝Yi+Dy
Mi＝Mi+Dn
4) with the above-mentioned final rectification formula input picture rectifier that obtains, the image rectifier is corrected the former figure of the input of flat-panel display devices by this formula, the image after obtaining correcting by light penetrating panel at last.
Above-mentioned a kind of light penetrating panel, simple in structure, reasonable in design.It goes for flat panel display equipments such as LCD, PDP, DLP, CRT, OLCD.It does not adopt external light source, so it is not subjected to the influence of ambient light.The specific light collecting layer that it has, so this light penetrating panel goes for flat panel display equipments such as general LCD, PDP, DLP, CRT, OLCD.The little printing opacity cellular construction of its multilayer utilizes light refraction, principle of interference to eliminate the ghost image of display image, Moire fringe (moir) problem, strengthened simultaneously the intensity of effective sunlight again, improved the resolution of display image, the method for utilizing image to correct has been eliminated the problem of the distortion of image demonstration.And the antidote of its display image is simple to operate, and is practical, eliminated the slit between the light penetrating panel, realized the whole structure of giant-screen picture.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Fig. 3-5 is the structural representation of light-passing board among the present invention;
Fig. 6-11 is the structural representation of light collecting layer among the present invention.
Among the figure: the 1-scattering layer; The 2-optical waveguide layer; 201-vertical linear microprism; The horizontal linear microprism of 202-; 203-rectangular pyramid unit prisms; 204-arc microprism; The 3-light collecting layer.
Embodiment
Further specify the present invention below in conjunction with Figure of description.
As shown in Figure 1, a kind of light penetrating panel comprises scattering layer 1, optical waveguide layer 2 and light collecting layer 3 from top to bottom.Scattering layer 1 is that single light-passing board that epirelief or recessed cambered surface array group are formed constitutes by the surface.Optical waveguide layer 2 constitutes by one or more layers of light-passing board is compound.Light-passing board can adopt the structure shown in Fig. 3-5: the upper surface of every light-passing board or lower surface are provided with horizontal linear microprism 202 and vertical linear microprism 201, horizontal linear microprism 202 and vertical linear microprism 201 intersection mutually constitute rectangular pyramid unit prisms 203 array group, and horizontal linear microprism 202 and vertical linear microprism 201 are that leg-of-mutton triangular prism constitutes by the cross section; Also can adopt the both sides up and down around light-passing board upper surface or lower surface that horizontal linear microprism 202 is set, the right and left is provided with vertical linear microprism 201, horizontal linear microprism 202 extends to crossing with vertical linear microprism 201, so constitute one group of rectangular pyramid unit prisms 203 respectively on four angles of light-passing board, the width of general vertical linear microprism 201 and horizontal linear microprism 202 is smaller or equal to the length of side of light-passing board; Also can adopt the both sides up and down around light-passing board upper surface or lower surface that horizontal linear microprism 202 is set, the right and left is provided with vertical linear microprism 201, be connected by the arc microprism 204 that is provided with between adjacent horizontal linear microprism 202 and the vertical linear microprism 201, so be provided with arc microprism 204 on each angle of light-passing board, arc microprism 204 is that leg-of-mutton arc convex structure constitutes by the cross section.Optical waveguide layer can also adopt the light-passing board surface that non-spherical lens is set except using above-mentioned structure, and non-spherical lens is aspheric surface convex mirror or aspherical concave mirror, or the light-passing board surface is provided with little non-spherical lens array group.
The effect of optical waveguide layer has two, and the first, filter invalid light, be that those incident angles depart from excessive light in the inner formation reflection of optical waveguide layer, make it can't arrive scattering layer.The second, change the light ray propagation direction, effectively the light of incident angle incident is through the specific direction skew light of peace behind the optical waveguide layer.
The upper surface of light collecting layer 3 or lower surface constitute by the plano-concave of an aspheric surface or sphere, concave-concave, biconvex, plano-convex, concave-convex lens or by plano-concave, concave-concave, biconvex, plano-convex, the concave-convex lens array group of aspheric surface or sphere, light collecting layer 3 can adopt following structure simultaneously: shown in Fig. 6-11, the lower surface of light collecting layer 3 or upper surface constitute by a Fresnel lens or by little array of fresnel lenses group, also can hollow printing opacity post array group be set, promptly in light collecting layer 3, through hole be set at light collecting layer 3.The diameter of little Fresnel lens and hollow printing opacity post is between 1nm-20mm.
Scattering layer 1, optical waveguide layer 2 and light collecting layer 3 can adopt integral structure also can adopt the branch body structure, adopt when dividing body structure, can be formed by connecting with transparent adhesive tape or bonding machine between every layer, scattering layer 1, optical waveguide layer 2 and light collecting layer 3 adopt optical film material or optics sheet material to constitute.
As shown in Figure 2, a kind of light penetrating panel comprises scattering layer 1, optical waveguide layer 2 and light collecting layer 3 from top to bottom.Optical waveguide layer 2 constitutes by two or more than two light-passing board is compound, and two-layer up and down light-passing board surface is provided with microprism, and described microprism is linear microprism, and the groove of the linear microprism of two-layer up and down light-passing board table moves towards interlaced or be vertical mutually.Last or lower surface as the upper strata light-passing board is provided with horizontal linear microprism, and the last or lower surface of lower floor's light-passing board is provided with the vertical linear microprism.The structure of scattering layer 1 or light collecting layer 3 is identical with embodiment 1, and it also can reach the technique effect identical with embodiment 1 at last.
Two-layer light-passing board surface is provided with non-spherical lens respectively about also can adopting in the optical waveguide layer 2, and described non-spherical lens is aspheric surface convex mirror or aspherical concave mirror.The structure of scattering layer 1 or light collecting layer 3 is identical with embodiment 1, and it also can reach the technique effect identical with embodiment 1 at last.
On light collecting layer 3 lower surfaces in the above embodiments 1 and embodiment 2 flat-panel display devices is set, be equipped with the image rectifier of incoming image input data on the described flat-panel display devices, described flat-panel display devices is LCD, PDP, DLP, CRT or OLCD, and its concrete image rectification step is as follows:
1) accurately measures the long L of original image viewing area, wide W with known optical instrumentation, image is by viewing area La, wide Wa behind the light penetrating panel, optics mean refractive index n, average transmittance a and the average transmittance r of light penetrating panel, above-mentioned optics mean refractive index n, average transmittance a and average transmittance r are the mean value of light collecting layer among the present invention, optical waveguide layer and scattering layer three deck panels;
2) with known given N frame test pattern data input plane display device, with i pixel coordinate in the former displayed map of known device measuring: (Xi, Yi), the optical strength of this point is Mi, the coordinate of the pixel by the correspondence behind the light penetrating panel is (Xai, Yai), the strong Mai of the optics of this point
Then the offset system of pixel is: directions X Lxi=(Xai-Xi)/L
Y direction Lyi=(Yai-Yi)/W
The modified value of pixel light intensity is ni=(Mi-Mai);
3) to above-mentioned by drawing corresponding Lxi, Lyi, ni average RLxi, RLyi, Rni and add corresponding correction factor Lxdi, Lydi, ndi behind the N frame test pattern data test, obtain Dx=RLxi-Lxdi; Dy=RLyi-Lydi, Dn=Rni-ndi,
Then the final rectification formula of i point is:
Xai＝Xi+Dx
Yai＝Yi+Dy
Mi＝Mi+Dn
4) with the above-mentioned final rectification formula input picture rectifier that obtains, the image rectifier is corrected the former figure of the input of flat-panel display devices by this formula, the image after obtaining correcting by light penetrating panel at last.
The antidote of display image is simple to operate, and is practical, eliminated the slit between the light penetrating panel, realized the whole structure of giant-screen picture.
Shown in the above and the figure only is preferred implementation of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (11)
1. light penetrating panel, it is characterized in that comprising by one or more layers surface and be provided with the optical waveguide layer (2) that the light-passing board of microprism, non-spherical lens or little non-spherical lens array constitutes, described optical waveguide layer (2) upper surface is equipped with scattering layer (1), optical waveguide layer (2) lower surface is equipped with light collecting layer (3), and above-mentioned scattering layer (1), optical waveguide layer (2) and light collecting layer (3) are integrated or divide body structure.
2. a kind of light penetrating panel as claimed in claim 1, it is characterized in that being provided with in the described optical waveguide layer (2) the above light-passing board of one deck, described light-passing board surface is provided with microprism, described microprism is linear microprism, and the groove of the microprism on two-layer up and down light-passing board surface moves towards interlaced or be vertical mutually.
3. a kind of light penetrating panel as claimed in claim 1 is characterized in that the light-passing board surface in the described optical waveguide layer (2) is provided with non-spherical lens, and described non-spherical lens is aspheric surface convex mirror or aspherical concave mirror.
4. a kind of light penetrating panel as claimed in claim 1, it is characterized in that light-passing board upper surface or lower surface in the described optical waveguide layer (2) are provided with horizontal linear microprism (202) and vertical linear microprism (201), horizontal linear microprism (202) and vertical linear microprism (201) intersection mutually constitute rectangular pyramid unit prisms (203) array group.
5. a kind of light penetrating panel as claimed in claim 1, it is characterized in that light-passing board upper surface or lower surface both sides up and down all around in the described optical waveguide layer (2) are provided with horizontal linear microprism (202), the right and left is provided with vertical linear microprism (201), and horizontal linear microprism (202) and vertical linear microprism (201) extend to intersect mutually on four angles of light-passing board and constitute one group of rectangular pyramid unit prisms (203) respectively.
6. a kind of light penetrating panel as claimed in claim 1, it is characterized in that light-passing board upper surface or lower surface both sides up and down all around in the described optical waveguide layer (2) are provided with horizontal linear microprism (202), the right and left is provided with vertical linear microprism (201), is connected by the arc microprism (204) that is provided with between adjacent horizontal linear microprism (202) and the vertical linear microprism (201).
7. a kind of light penetrating panel as claimed in claim 1 is characterized in that described scattering layer (1) is light-passing board or the light-transmissive film that epirelief or recessed cambered surface array group constitute by the surface.
8. a kind of light penetrating panel as claimed in claim 1 is characterized in that the upper surface of described light collecting layer (3) or lower surface constitute by the plano-concave of an aspheric surface or sphere, concave-concave, biconvex, plano-convex, concave-convex lens or by plano-concave, concave-concave, biconvex, plano-convex, the concave-convex lens array group of aspheric surface or sphere.
9. a kind of light penetrating panel as claimed in claim 1 is characterized in that being provided with in the described light collecting layer (3) hollow printing opacity post array group.
10. a kind of light penetrating panel as claimed in claim 1 is characterized in that the lower surface of described light collecting layer (3) or upper surface are made of a Fresnel lens or a little array of fresnel lenses group that plays the optically focused effect.
11. the method that a kind of light penetrating panel display image as claimed in claim 1 is corrected, it is characterized in that on described light collecting layer (3) lower surface flat-panel display devices being set, be equipped with the image rectifier of incoming image input data on the described flat-panel display devices, described flat-panel display devices is LCD, PDP, DLP, CRT or OLCD, and its concrete image rectification step is as follows:
1) accurately measure the long L of original image viewing area, wide W with known optical instrumentation, image is by viewing area La, wide Wa behind the light penetrating panel, optics mean refractive index n, average transmittance a and the average transmittance r of light penetrating panel;
2) with known given N frame test pattern data input plane display device, with i pixel coordinate in the former displayed map of known device measuring: (Xi, Yi), the optical strength of this point is Mi, the coordinate of the pixel by the correspondence behind the light penetrating panel is (Xai, Yai), the strong Mai of the optics of this point
Then the offset system of pixel is: directions X Lxi=(Xai-Xi)/L
Y direction Lyi=(Yai-Yi)/W
The modified value of pixel light intensity is ni=(Mi-Mai);
3) to above-mentioned by drawing corresponding Lxi, Lyi, ni average RLxi, RLyi, Rni and add corresponding correction factor Lxdi, Lydi, ndi behind the N frame test pattern data test, obtain Dx=RLxi+Lxdi; Dy=RLyi+Lydi, Dn=Rni+ndi,
Then the final rectification formula of i point is:
Xai＝Xi+Dx
Yai＝Yi+Dy
Mi＝Mi+Dn
4) with the above-mentioned final rectification formula input picture rectifier that obtains, the image rectifier is corrected the former figure of the input of flat-panel display devices by this formula, the image after obtaining correcting by light penetrating panel at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270640 CN101980059B (en) | 2010-08-30 | 2010-08-30 | Light transmission panel and display image correcting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270640 CN101980059B (en) | 2010-08-30 | 2010-08-30 | Light transmission panel and display image correcting method thereof |
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| CN101980059A true CN101980059A (en) | 2011-02-23 |
| CN101980059B CN101980059B (en) | 2012-12-19 |
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| CN 201010270640 Expired - Fee Related CN101980059B (en) | 2010-08-30 | 2010-08-30 | Light transmission panel and display image correcting method thereof |
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| Publication number | Publication date |
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| CN101980059B (en) | 2012-12-19 |
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