CN1143754A - Liquid crystal display apparatus - Google Patents
Liquid crystal display apparatus Download PDFInfo
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- CN1143754A CN1143754A CN 95116654 CN95116654A CN1143754A CN 1143754 A CN1143754 A CN 1143754A CN 95116654 CN95116654 CN 95116654 CN 95116654 A CN95116654 A CN 95116654A CN 1143754 A CN1143754 A CN 1143754A
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Abstract
An LCD device uses a holographic colour splitter to split white light into red, green and blue colours, each of which is incident to liquid crystal board at different angles. Said liquid crystal board has a microlens array made of holographic optical elements to focus different colour light beams to correspondent pixels. As colour filters are not used, the light beam which is sucked originally is effectively used and the light beam that is sucked originally by "black array" can fully penetrate the openings of liquid crystal board under the focussing action of microlenses, so increasing brightness and decreasing heat generation.
Description
The present invention relates to a kind of liquid crystal indicator, be particularly related to a kind of distribution that utilizes holographic dichronic mirror refractive index, phase place or penetrance, white light is reflected red, green, blue three coloured light with different incident angles through holographic dichronic mirror, incide on the liquid crystal board respectively, make originally and can all be released by absorbed light, make the point brilliance that is projected on the screen improve the device of several times.
When different driving voltages was added on the liquid crystal molecule, liquid crystal molecule can change its ordered state, made the light by liquid crystal board change its polarization characteristic.If so the light that light source is sent passes through a slice Polarizer earlier, make light become linearly polarized photon, utilize different voltage to be added on the liquid crystal molecule again, make the polarization direction of light change with the difference of voltage, when the polarization direction of light and second linear Polarizer not simultaneously, then light can be absorbed, if the polarization of light direction is identical, then light can not pass through device with being absorbed.If the polarization direction of polarization direction and second linear Polarizer folder one is not 0 angle θ, then the energy of emergent ray will for do not absorb by the time COS
2θ doubly, so the change by driving voltage, we can obtain the image of black and white on screen.
On the other hand, if seek out colored image, the general spatiality red, green, blue three look separate modes that adopt more, promptly on the pixel of liquid crystal board, add red, green or blue color filter respectively with arrangement modes such as triangle or stripeds, each color filter only allows the light of certain specific band pass through, so what seen on screen will be that three kinds of luminous points of red, green, blue are staggered.Because the resolution that human eye can be distinguished is limited, so when watching picture by the distant place, what experienced will be 3 colors that blended together of red, green, blue, and three coloured light of different proportion can form the sensation of different colours in brain, the principle of work of Here it is one chip color liquid crystal projection TV.But because light is during through first Polarizer, existing energy over half is absorbed, the aperture opening ratio of liquid crystal is two mostly between 30%～40%, add color filter and only allow certain of the same colour passing through in the three primary colors, all the other dichromatisms all will be absorbed, so have only 1/3 light to pass through again, whole liquid crystal module will sponge the light of 1-0.5 * 0.3 * 1/3=95%, have only 5% light can pass through device, cause one chip lcd projection tv luminance shortage.If the mode of taking to strengthen bulb wattage improves brightness, the energy that Polarizer and liquid crystal board absorbed also will increase relatively, and these energy are transformed into after the heat energy, is easy to make liquid crystal and Polarizer to damage, fiduciary level reduces, so need other method to solve this problem.
For solving the problem of above-mentioned luminance shortage, the light beam that some invention is taked to utilize modes such as prism or quarter-wave retardation plate that polarization polarity at random is sent in the lamp source all becomes same polarity, so originally, can be used effectively by the energy that first Polarizer absorbs, brightness can be enhanced about more than once.But the light ray energy that liquid crystal board absorbed also can increase relatively, so the wattage that bulb can use must limit to some extent.The workable temperature of LCD will be the final decision factor that this device can reach brightness at last; On the other hand, some invention has added the microlens array of one deck by the ion exchange process manufacturing on liquid crystal board, so that the light that will be stopped by pixel electrode originally also can pass through liquid crystal board smoothly, makes brightness effectively to improve.But because lenticule gathers light on optical filtering, the dyestuff that makes optical filtering is easily played chemical change and fade gradually, influence image quality greatly.
Fundamental purpose of the present invention, be to solve the defective of above-mentioned brightness and heating, it is red that we utilize holographic dichronic mirror that white light is divided into, green, Lan Sanse, each coloured light all incides on the liquid crystal board with different angles, the microlens array that is made of holographic optical elements (HOE) (H.O.E) is arranged on liquid crystal board, respectively that each coloured light is poly-on corresponding pixel, do not use color filter on the liquid crystal board, originally can both be effectively utilized by absorbed light, so brightness can improve, and the light that can be absorbed by " the black matrix " on the liquid crystal board originally, because lenticular focussing force, all can both penetrate the opening of liquid crystal board and go out, so brightness will increase again, owing to can both be effectively utilized by absorbed light originally, the problem of heat also can solve effectively; Owing to do not use color filter on the liquid crystal board, so there is not the problem of fading yet.
Another object of the present invention is to utilize the reflective holographic dichronic mirror that light is divided into the red, green, blue three-beam, is focused in the respective pixel by holographic microlens array again.This kind mode is easier on collimation.
Another purpose of the present invention, be that the holographic dichronic mirror of penetration is divided into two-layer, ground floor is the holographic dichronic mirror that makes the ruddiness deviation, the second layer is the holographic dichronic mirror that makes the blue light deviation, green glow does not then change direction ground fully and advances, and is by holographic microlens array that each coloured light is poly-to corresponding liquid crystal pixel (Pixel) again.Another kind of mode then is that dichronic mirror and microlens array are integrated, and this kind structure is easier on collimation, and cost is lower.
Still a further object of the present invention is to utilize two look filters (dichroic mirror) and holographic microlens array, can get a more stable image quality.
Still a further object of the present invention, be to utilize the color separation microlens lens of a holographic dichronic mirror and microlens array or digital hologram sheet, to incide the color separation microlens lens by catoptron through condenser from the light that bulb sends, and directly white light will be divided into the red, green, blue three-beam and focus in the respective pixel.
Be to realize above-mentioned purpose of the present invention, a kind of liquid crystal indicator of the present invention comprises: one group of lamp and collective optics provide display system required light source; One to several pieces holographic dichronic mirrors, the light refraction of different wavelength range can be arrived different angles; Micro lens arrays will be from the different wavelength range convergence of rays of different angles in the opening of respective display elements pixel; The display element that constitutes by many pixels.
Be understanding said method, purpose and device, and the technology used in the present invention means and effect thereof, be elaborated referring now to method, device and the function of accompanying drawing to the embodiment of the invention.
Fig. 1 is the synoptic diagram of liquid crystal indicator of the present invention.
Fig. 2 is the holographic dichronic mirror structural representation that three layers of volume hologram sheet of the present invention constitute.
Fig. 3 is the holographic dichronic mirror structural representation that two layers of volume hologram sheet of the present invention and a slice two look filters constitute.
Fig. 4 is the structural representation of the holographic dichronic mirror of single-layer type of the present invention.
Fig. 5 A is a reflective holographic dichronic mirror manufacturing process synoptic diagram of the present invention.
Fig. 5 B is a reflective holographic dichronic mirror use-pattern synoptic diagram of the present invention.
Fig. 6 A is the holographic dichronic mirror style of shooting of a penetrating type of the present invention synoptic diagram.
Fig. 6 B is the holographic dichronic mirror use-pattern of a penetrating type of the present invention synoptic diagram.
Fig. 7 is a quadravalence layer dualistic formula Fresnel micro lens synoptic diagram of the present invention.
Fig. 8 is a zigzag dualistic formula Fresnel micro lens synoptic diagram of the present invention.
Fig. 9 is the synoptic diagram of light of the present invention through microlens array.
Figure 10 is a penetration display mode embodiment synoptic diagram of the present invention.
Figure 11 is the synoptic diagram of four two look filter mode implementation columns of the present invention.
Figure 12 is the reflective embodiment synoptic diagram of the present invention.
Figure 13 is the reflective embodiment synoptic diagram of volume type of the present invention.
Figure 14 A is the holographic color separation microlens lens of a present invention manufacturing process synoptic diagram.
Figure 14 B is the holographic color separation microlens lens arra of a present invention using method synoptic diagram.
Figure 1 shows that liquid crystal indicator synoptic diagram of the present invention.As shown in the figure, liquid crystal indicator of the present invention, be to adopt holographic dichronic mirror, white light is divided into red, green, blue three looks, each coloured light all incides on the liquid crystal board with different angles, the microlens array that is made of holographic optical elements (HOE) (Holographic Optical Element) is arranged on liquid crystal board, respectively that each coloured light is poly-on corresponding pixel.Owing to do not use color filter on the foregoing liquid crystal plate, can both be effectively utilized by absorbed light originally, so brightness can improve three times; And originally can be by the light of " black matrix " absorption on the liquid crystal board, because lenticular focussing force, all can both penetrate the opening of liquid crystal board and go out, so brightness will increase by 2.5 times again, owing to can both be utilized effectively by absorbed light originally, the problem of heat also can solve effectively.
With above-mentioned method, make liquid crystal indicator of the present invention at the light 101 of bulb 10 by after becoming directional light by catoptron 20 and condenser 30, incide on the holographic dichronic mirror 40, holographic dichronic mirror 40 is with red 41, green 42, blue 43 3 looks are divided into different angles as-8 °, 0 °, behind 8 ° the three road directional lights, the ground floor Polarizer 51 that incides liquid crystal module 50 is to microlens array 52, through microlens array 52 focussing forces, the incident light of different angles is passed liquid crystal board 55 from different pixels, by second layer Polarizer 53 and planar lens 54, project on the screen via projection lens 60 more again.
Fig. 2,3,4 is three kinds of reflective holographic dichronic mirror structural representations of the present invention.Above-mentioned holographic dichronic mirror 40 is three layers of volume hologram sheet (Volume Hologram) as shown in Figure 2, or being constituted as shown in Figure 3 by two layers of volume hologram sheet and a slice two look filters (dichroicmirror), holographic dichronic mirror 40 for these three layers of volume hologram sheets, ground floor is a hologram sheet 401 to the ruddiness effect, the second layer is that a hologram sheet to blue light action is a hologram sheet 403 to the green glow effect for 402, the three layers; For the holographic dichronic mirror 40 of two layers of volume hologram sheet, ground floor is a hologram sheet 404 to the ruddiness effect, the second layer is a hologram sheet 405 to blue light action, and two look filter 406, and above each layer hologram sheet puts in order and can change according to different demands, for example earlier to the green glow effect, again to ruddiness effect or the like; And the method for making of aforementioned volume hologram sheet and process, shown in Fig. 5 A, object light 71 forms interference fringe 73 with reference light 72 on photosensitive material (recording medium Recording Medium) 70, when photosensitive material 70 processes are developed, after photographic fixing, bleaching supervisor were handled, photosensitive material 70 inner penetrances or phase place, refractive index can be done cyclical variation along with interference fringe 73.Shown in Fig. 5 B, when rebuilding light 81 and be radiated at the hologram sheet 80 (Hologram) that takes, can obtain the real image identical on Bragg's condition of reflection (Bragg reflection condition) 2d sin θ=n λ direction satisfying with original light 82.Because for specific angle θ and interference fringe 73 distance (fringe spacing d) at interval, all have only subwave to cover with sufficient Bragg condition (Bragg condition), so except the light of specific wavelength is reflected a certain angle of deviation, remaining light will at all continue by hologram sheet 80 insusceptibly.So suitably arrange value apart from d and angle θ, can make the hologram sheet 80 of different layers with the light deflection of different colours on different angles.For example ground floor makes 53 ° of ruddiness deviations, and the second layer makes 37 ° of blue light deviations, and the 3rd layer of green glow is with 45 ° of ejaculations.
In addition, above-mentioned three layers of hologram sheet 80 also may be replaced by a slice volume hologram sheet (VolumeHologram), when with a slice hologram sheet 80, available different wave length and different angles are same photosensitive material 70 photographs three times, obtain three groups of interference figures (fringe patte-rn) (as shown in Figure 4), pass through photographic fixing again, develop, after the formalities such as bleaching, when white light is on hologram sheet 80, the light of different colours will penetrate with different angles according to the reflection direction of original setting, as Fig. 2, shown in 3, with form with three layers of volume hologram sheet or two layers of volume hologram sheet and a slice two look filters the same.Aspect the use of the holographic dichronic mirror of penetration, shown in Fig. 6 B, when white light 81a incides hologram sheet 80a, just penetrate out three beams ruddiness 82a, green glow 83a, blue light 84a with different angles, and this three beams penetrates light and need satisfy Bragg's condition of reflection.The holographic dichronic mirror basic structure and the principle of penetration are similar to reflection-type, only when taking, object light and reference light are positioned at the same side of recording materials, as shown in Figure 6A, and this object light 71 and reference light 72 photosensitive material (recording medium RecordingMedium) 70 1 sides that coexist.The employed photosensitive material 70 of recording materials has a variety of, as silver halide, photosensitive resin (photoresists), photopolymer (Photopolymer) or the like.Photopolymer is produced in a large number because of using ultraviolet radiation modality, so be specially adapted to the present invention.To enter microlens array 52 with different angles through the light after the color separation, this microlens array can use multiple mode to constitute, ion exchange process or the like for example, but because of factors such as easiness that consider to produce in batches and quality of stability, utilize quadravalence layer dualistic formula or zigzag dualistic formula Fresnel micro lens (shown in Fig. 7,8) in this suggestion, but the lenticule that alternate manner is made can be used in the present invention still.
The manufacture method of above-mentioned micro fresnel lens array has a variety of, and is commonly used as utilizing el (Electron beam lithography) or IC etching mode to manufacture master mold, makes in a large number with methods such as die casting or ejection formations again.And the light of different angles will be assembled in different pixels, as shown in Figure 9 through the effect of microlens array.Therefore each micro lens is all corresponding to three pixels of red, green, blue, because the mode that pixel is arranged on the liquid crystal board has multiple, as striped, triangle arrangement or the like, so the shape of micro lens may be decided according to different application for the different form of column, sexangle or the like.From the light of different pixel outgoing, through the effect of Fresnel micro lens and projection lens, on screen, can produce colored image, and compare with existing technology, the present invention has obviously simplified the problem of collimation (alignment).Every two look filter (dichroicmirror) is all essential in existing technology suitably adjusts angle, otherwise is easy to produce colour mixture or light can't be by problems such as devices, and the present invention has obviously got rid of above-mentioned difficulties.In addition, because holographic dichronic mirror sticks on the same sheet glass, so the volume of projection arrangement, has little, the lightweight advantage of volume than greatly reducing in the prior art.
Figure 10 is the synoptic diagram of the embodiment of the invention.As shown in the figure: after the light 101a of bulb 10a becomes directional light by catoptron 20a and condenser 30a, incide the holographic dichronic mirror 40a of penetrating type, the holographic dichronic mirror 40a of this penetrating type is divided into two-layer, ground floor is the holographic dichronic mirror 41a that makes the ruddiness deviation, and the second layer is the holographic dichronic mirror 42a that makes the blue light deviation, and green glow does not then change direction ground fully and advances, above color separation order also can change to some extent, as first deviation blue light, deviation green glow again, ruddiness is kept former direction and is passed through.Be angled to green, red, the blue directional light of three different angles, converge on the corresponding pixel by full figure microlens array 43a again, again ejecting device.Another kind of mode then is that dichronic mirror and microlens array are integrated, formation penetrates the color separation microlens lens arra, when taking this kind hologram sheet, object light is the pointolite of corresponding liquid crystal pixel position, reference light then is a directional light, when rebuilding with reverse reference beam, light can be toward former liquid crystal position deviation optically focused, when use is satisfied different cloth Lay glazing bar spares and is taken three times penetrating type volume hologram sheet, white light can be divided into the red, green, blue three-beam and directly focus on the corresponding liquid crystal pixel, save microlens array like this.This kind structure is easier on arranging, and cost is lower.(as making and the use-pattern of Figure 14 A, B).
Figure 11 is the synoptic diagram of the invention process row.As shown in the figure: the light 101b that sends from bulb 10b after condenser 30b becomes directional light, incides two look filter 40b by catoptron 20b, injects holographic microlens array 60b by two look filter 50b again, is incident upon on the liquid crystal board 70b again.Utilize holographic microlens array 60b, brightness is improved.
Figure 12 is the synoptic diagram of the embodiment of the invention.As shown in the figure: the light 101c of bulb 10c incides holographic dichronic mirror 40c by catoptron 20c through condenser 30c, holographic dichronic mirror 40c is made of the hologram sheet of surface undulation shape, the hologram sheet of this kind surface undulation shape can influence the phase place of incident light, make concentration of energy in the diffraction light of one-level, because the light path difference that the light of different wave length is walked, after the white light incident, on first order diffraction direction of light, the light of different wave length can be diffracted on the different angles, by holographic microlens array 50c red, green, blue three looks is focused in the corresponding pixel again.This kind mode is easier on collimation.
Figure 13 is the synoptic diagram of the embodiment of the invention.As shown in the figure, make the holographic color separation microlens lens arra of the penetrating type among Figure 10 into reflective holographic color separation microlens lens arra, its principle of work is similar to penetrating type, object light and reference light are at the two opposite sides of recording materials when just taking, behind this kind of white light process reflective holographic dichronic mirror, the RGB three-beam directly converges at the corresponding liquid crystal pixel and ejecting device.
Liquid crystal indicator of the present invention not only can improve the brightness of image slices point greatly, also can prevent element because of overheated weather stain, and saves the energy, meets modern environmental requirement, has good practical effect.
The above only is a preferable possible embodiments of the present invention, can not therefore arrest limit patent claimed range of the present invention, and all equivalent structures that utilizes instructions of the present invention and accompanying drawing content to be done change, and all should be contained among the scope of the present invention.
Claims (15)
1, a kind of liquid crystal indicator comprises:
One group of lamp and collective optics provide display system required light source;
One to several pieces holographic dichronic mirrors, the light refraction of different wavelength range can be arrived different angles;
Micro lens arrays will be from the different wavelength range convergence of rays of different angles in the opening of respective display elements pixel;
The display element that constitutes by many pixels.
2, liquid crystal indicator according to claim 1, wherein, this holography dichronic mirror is constituted by three layers of volume hologram sheet or two layers of volume hologram sheet and a slice two look filters, the ground floor of the holographic dichronic mirror of three layers of volume hologram sheet is a hologram sheet to the ruddiness effect, the second layer is a hologram sheet to blue light action, the 3rd layer is a hologram sheet to the green glow effect, the ground floor of the holographic dichronic mirror of these two layers of volume hologram sheets is a hologram sheet to the ruddiness effect, the second layer is by only blue light action and hologram sheet and purplish red two look filters being constituted, the order of above color separation can change, blue as dividing earlier, deviation green etc. again, this moment, two look filters must be with cyano group two look filters (Cyan Dichroic filter).
3, liquid crystal indicator according to claim 1, wherein, this holography dichronic mirror can be penetration or reflective.
4, liquid crystal indicator according to claim 1, wherein, described micro lens arrays be the small lens array of holographic optical elements (HOE), small Fresnel Lenses lens array, GRIN lens array, sphere and aspheric mirror chip arrays, biconvex lens (Lenticular) or Cyliner lens array, the small lens array of distributed refractive index made with ion exchange process.
5, liquid crystal indicator according to claim 1, wherein, if during described display element liquid crystal module, this liquid crystal module is made of ground floor Polarizer, microlens array liquid crystal board, second layer Polarizer; If modes such as existing prism of device or quarter-wave retardation plates, the light that light source is sent becomes linearly polarized photon, then first polaroid can save need not, to scattering type liquid crystal macromolecule display device, two Polarizers in front and back all can omit need not.
6, liquid crystal indicator according to claim 1, wherein, after the light of described lamp becomes directional light by catoptron or described collective optics, incide described holographic dichronic mirror, ground floor is the hologram sheet that makes the ruddiness deviation, and the second layer is the hologram sheet that makes the blue light deviation, and green glow does not then change direction ground fully and advances, by holographic microlens array beam split, above color separation order can change again; Another kind of mode then is that dichronic mirror and microlens array are integrated, and this kind structure is easier on collimation, and cost is lower.
7, liquid crystal indicator according to claim 1, wherein, after the light of described lamp becomes directional light by catoptron or described collective optics, incide two look filters, inject holographic microlens array by two look filters again, be incident upon again on the liquid crystal board, utilize holographic microlens array, make picture quality more stable.
8, liquid crystal indicator according to claim 1, wherein, the light of described lamp incides holographic dichronic mirror by catoptron or described collective optics, utilize reflective holographic dichronic mirror that light is divided into the red, green, blue three-beam, focused in the corresponding pixel by microlens array, this kind mode is easier on collimation again.
9, liquid crystal indicator according to claim 1, wherein, each described micro lens is all corresponding to three pixels of red, green, blue, because the mode that pixel is arranged on the liquid crystal board has multiple, as striped, triangle arrangement etc., so the shape of micro lens may be the different form of column, sexangle or the like.
10, liquid crystal indicator according to claim 2, wherein, three layers of described holographic dichronic mirror or two layers of hologram sheet can be replaced by a slice volume hologram sheet, when with a slice hologram sheet, available different wave length and different angles are at same photosensitive material photographs three times or secondary, obtain three groups or two groups of interference fringe patterns, after passing through formalities such as photographic fixing, development, bleaching again, when white light was on hologram sheet, the light of different colours will penetrate with different angles according to the reflection direction of original setting.
11, liquid crystal indicator according to claim 2, wherein, described holographic dichronic mirror utilizes a holographic color separation microlens lens arra or a digital hologram sheet, the light that described lamp is sent incides holographic color separation microlens lens by catoptron or described beam condensing unit are parallel, directly white light is divided into the red, green, blue three-beam and focuses in the respective pixel.
12, liquid crystal indicator according to claim 2, wherein, in described holographic dichronic mirror, suitably arrange the value of interference fringe spacing distance d and angle θ on the described hologram sheet so that the hologram sheet of different layers with the light deflection of different colours on different angles.
13, liquid crystal indicator according to claim 2, wherein, when the hologram sheet in the described holographic dichronic mirror is made, object light and reference light are gone up at photosensitive material (recording materials Re-cording Medium) and are formed interference fringe, after photosensitive material was handled through development, photographic fixing, bleaching supervisor, inner penetrance of photosensitive material or phase place, refractive index were along with interference fringe is done cyclical variation.
14, liquid crystal indicator according to claim 2, wherein, described holographic dichronic mirror can be pasted every layer of volume hologram sheet respectively respectively or take on glass, make the proper refrangible of every sheet glass or reflect one or the light of two kind of color, by every sheet glass is arranged with different angles, can make the light of different colours incide liquid crystal board, reach the purpose of color separation with different angles.
15, liquid crystal indicator according to claim 13, wherein, the employed photosensitive material of described recording materials can be silver halide, photosensitive resin (Photoresists), photopolymer (Photopolymer), dichromic acid compound (Dichromic), gelatin (Gela-tin) or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95116654 CN1143754A (en) | 1995-08-24 | 1995-08-24 | Liquid crystal display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95116654 CN1143754A (en) | 1995-08-24 | 1995-08-24 | Liquid crystal display apparatus |
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| CN1143754A true CN1143754A (en) | 1997-02-26 |
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| CN 95116654 Pending CN1143754A (en) | 1995-08-24 | 1995-08-24 | Liquid crystal display apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405210C (en) * | 2001-10-15 | 2008-07-23 | 索尼株式会社 | Picture display device |
| CN102956160A (en) * | 2012-10-15 | 2013-03-06 | 上海交通大学 | High-contrast OLED (Organic Light Emitting Diode) display device based on volume holographic principle |
| CN110749999A (en) * | 2018-07-04 | 2020-02-04 | 三星电子株式会社 | Holographic display device with reduced chromatic aberration |
| CN110954966A (en) * | 2019-12-06 | 2020-04-03 | 中国科学院长春光学精密机械与物理研究所 | Planar photoelectric detection system based on superlens array |
-
1995
- 1995-08-24 CN CN 95116654 patent/CN1143754A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405210C (en) * | 2001-10-15 | 2008-07-23 | 索尼株式会社 | Picture display device |
| CN102956160A (en) * | 2012-10-15 | 2013-03-06 | 上海交通大学 | High-contrast OLED (Organic Light Emitting Diode) display device based on volume holographic principle |
| CN110749999A (en) * | 2018-07-04 | 2020-02-04 | 三星电子株式会社 | Holographic display device with reduced chromatic aberration |
| CN110749999B (en) * | 2018-07-04 | 2024-03-22 | 三星电子株式会社 | Holographic display device with reduced color difference |
| CN110954966A (en) * | 2019-12-06 | 2020-04-03 | 中国科学院长春光学精密机械与物理研究所 | Planar photoelectric detection system based on superlens array |
| CN110954966B (en) * | 2019-12-06 | 2021-06-15 | 中国科学院长春光学精密机械与物理研究所 | Planar photoelectric detection system based on superlens array |
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