CN107179612B - Novel free 3D display without crosstalk and resolution loss - Google Patents
Novel free 3D display without crosstalk and resolution loss Download PDFInfo
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- CN107179612B CN107179612B CN201710382971.0A CN201710382971A CN107179612B CN 107179612 B CN107179612 B CN 107179612B CN 201710382971 A CN201710382971 A CN 201710382971A CN 107179612 B CN107179612 B CN 107179612B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
Abstract
The invention discloses a novel free 3D display without crosstalk and resolution loss, which comprises a backlight source, a grating film, light collecting column lens grating plates, liquid crystal column light switch plates, collimating column lens grating plates and a liquid crystal 2D image display panel which are sequentially arranged in a frame from inside to outside, wherein the liquid crystal column light switch plates are provided with switch units, each switch unit is provided with 3 sub-switch units, the grating units of the grating film, the grating units of the light collecting column lens grating plates and the sub-switch units are in one-to-one correspondence, and the grating units of each 1 collimating column lens grating plate are corresponding to the grating units of 3 light collecting column lens grating plates, and the invention has the following advantages that: the divergence is reduced, the situation that a plurality of angle light rays can enter the viewpoint area simultaneously to form serious crosstalk is avoided, the control circuit controls the sub-switch units to switch, left and right parallax images with reversed orders cannot be seen in the intersection area, discomfort and dizziness cannot be caused, and meanwhile the cost of the display is reduced.
Description
Technical Field
The invention is suitable for the technical field of stereoscopic display, and particularly relates to a novel free 3D display without crosstalk and resolution loss.
Background
The naked eye 3D display technology enables a viewer to remove 3D glasses, and viewing comfort is improved. The binocular parallax-based grating free 3D display is an important 3D display, can be divided into slit grating and cylindrical lens grating naked eye 3D display 2 types according to different grating materials, and has the advantages of high brightness, viewing comfort level superior to that of the slit grating display and the like. However, when the lenticular lens grating is used for splitting the synthetic image, a certain view point receives light rays emitted by the corresponding parallax image sub-pixels and light rays emitted by adjacent parallax image sub-pixels, so that crosstalk of images between view points is generated, and as the image pixels are divided into the sub-pixels of a plurality of view points, resolution loss is great, image quality of the 3D display is affected, viewing comfort of a viewer is reduced, and aiming at the crosstalk problem, various methods have been proposed, such as a method for eliminating image crosstalk between adjacent view points by correcting brightness values of the sub-pixels of the synthetic image, and crosstalk is reduced by analyzing the relation between positions of the sub-pixels of the image and a lens array, and the crosstalk problem of the images between view points can be improved to a certain extent by using the polarized lens array, but the resolution loss problem cannot be solved; the original resolution of the liquid crystal panel can be kept unchanged by the directional backlight naked eye 3D solution, but the solution has serious defects, taking a 5-viewpoint solution as an example, wherein the backlight source is a uniform surface light source with a large divergence angle, and a plurality of angle light rays of different pixels can enter a viewpoint area at the same time to form serious crosstalk; secondly, the LCD light modulator is opened in a time-sharing way, and the image display brightness of the 5-viewpoint scheme is reduced to 1/5 of the original brightness; thirdly, the sequence of left and right parallax images of the intersection area of the image areas of adjacent units is reversed, so that the stereoscopic effect is not achieved during watching, and serious discomfort and dizziness can be caused; fourth, the image refresh rate of the liquid crystal image display panel 74 is increased by a factor of 5, which is difficult to achieve with conventional LCD displays, or greatly increases the manufacturing cost of the display.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a novel free 3D display without crosstalk, higher brightness and lower cost.
In order to achieve the above object, the solution of the present invention is:
the utility model provides a novel no crosstalk and no free 3D display of resolution loss, has frame, backlight, liquid crystal are listed as optical switch board, collimating column lens grating board, liquid crystal 2D image display panel and is used for the timesharing control liquid crystal are listed as optical switch board and are carried out the control circuit that switches, the backlight the liquid crystal is listed as optical switch board collimating column lens grating board with liquid crystal 2D image display panel installs in proper order from inside to outside in the frame, the backlight includes light guide plate and sets up the white light LED lamp strip in the light guide plate both sides, the grating face of collimating column lens grating board is dorsad liquid crystal is listed as optical switch board, its characterized in that: the backlight module comprises a backlight source, a light guide plate, a light condensing column lens and a light focusing column lens, wherein the light condensing column lens deflects emergent light of the backlight source into quasi-parallel light in the orthogonal direction of the light guide plate, the light condensing column lens is arranged between the light guide plate and the liquid crystal column lens, the light condensing column lens is tightly stuck to one side of the light guide plate, which is towards the liquid crystal column lens, and the light condensing column lens is tightly stuck to the light guide plate, the light condensing column lens is tightly stuck to the light condensing column lens, and the liquid crystal face of the liquid crystal column lens is arranged on the focal plane of the light condensing column lens;
the frame is provided with a black bottom plate, and the surface of the black bottom plate is a rough surface;
the light guide plate is a flat plate with smooth surfaces on both sides;
the grating film, the condensing cylindrical lens grating plate and the collimating cylindrical lens grating plate are respectively provided with grating units arranged along the vertical direction, the liquid crystal array optical switch plate is provided with switch units arranged along the vertical direction, each switch unit is provided with 3 sub-switch units with equal width, and the 3 sub-switch units are horizontally arranged side by side;
the grating units of the grating film, the grating units of the grating plates of the condensing lens and the sub-switch units are in one-to-one correspondence, and each 1 grating unit of the grating plates of the collimating lens corresponds to 3 grating units of the grating plates of the condensing lens.
The grating film is a high-transparency polymer film with one smooth plane and the other surface provided with a plurality of triangular prism-shaped grating unit structures, and the smooth plane is closely attached to the light guide plate.
One surface of the condensing column lens grating plate is a smooth plane, and the other surface of the condensing column lens grating plate is a grating plate surface on which a plurality of semi-cylindrical grating units are arranged.
One surface of the collimating column lens grating plate is a smooth plane, and the other surface is a grating plate surface on which a plurality of semi-cylindrical grating units are arranged.
The light guide plate, the condensing column lens grating plate and the collimating column lens grating plate are all high-transparency acrylic plates.
After the structure is adopted, the novel free 3D display without crosstalk and resolution loss has the following beneficial effects:
1. and a grating film for deflecting emergent light of the backlight source into quasi-parallel light in the orthogonal direction of the light guide plate and a condensing cylindrical lens grating plate for converging the quasi-parallel light are arranged between the backlight source and the liquid crystal array optical switch plate, and a liquid crystal surface of the liquid crystal array optical switch plate is arranged on a focal plane of the condensing cylindrical lens grating plate. In this way, quasi-parallel light emitted from the grating film is further converged on the liquid crystal array optical switch board through the condensing cylindrical lens grating board, brightness of light emitted by the liquid crystal array optical switch board is greatly enhanced, meanwhile, the switch unit of the liquid crystal array optical switch board is provided with 3 array sub switch units, serial numbers of the three array sub switch units are respectively 1, 2 and 3 from left to right, when 2D-3D switching is carried out, a control circuit is regulated, so that the sub switch units with serial numbers of 1 and 2 are alternately opened, the sub switch unit with serial number of 3 is closed, brightness when 3D images are displayed is basically consistent with brightness when 2D images are displayed, in addition, the sub switch unit with serial number of 1 corresponds to an image area with a right viewpoint, the sub switch unit with serial number of 2 corresponds to an image area with a left viewpoint, and the sub switch unit with serial number of 3 is always closed when 3D images are displayed, therefore, when the image area with the right viewpoint and the left viewpoint image area corresponding to the next group of switch unit are in a dark image area formed by the sub switch unit with serial number of 3, images can not be seen in the right or left and right images can not be seen in the right or right images or can not be seen in the right or left images.
2. The invention has no crosstalk and no resolution loss, the frame is a frame with a black bottom plate, which is different from the white bottom plate adopted by the common LCD backlight source, and the surface of the black bottom plate is a rough surface instead of a smooth surface, so that the backlight source of the invention is not a uniform light source emitting light in all directions; the light guide plate is a high-transparency acrylic plate with smooth planes on both sides, and is different from a light guide plate with mesh points adopted by a common LCD backlight source, so that the emergent light of the backlight source can be controlled; light rays emitted by the backlight source are deflected along the orthogonal direction of the light guide plate after passing through the grating film, and become emergent light rays approaching the orthogonal direction of the light guide plate, so that the light rays of the backlight source are concentrated and are not scattered any more, and the problem that a plurality of angle light rays of different pixels of the uniform surface light source can enter the viewpoint area at the same time to form serious crosstalk is avoided.
3. When the display screen displays the left view image and the right view image, the sub-switch units presenting the bright view points are turned on and off in turn, the refresh frequency is changed to 2 times of the original refresh frequency, the image refresh speed of the liquid crystal 2D image display panel is only increased by 1 time, the common LCD display can be realized, and the manufacturing cost can be reduced.
Drawings
Fig. 1 is a schematic exploded view of the present invention.
FIG. 2 is a schematic diagram of a portion of a grating film according to the present invention;
FIG. 3 is a schematic view showing a part of the structure of a grating plate of a condensing lens in the present invention;
FIG. 4 is a schematic diagram of a portion of a liquid crystal display panel according to the present invention;
FIG. 5 is a schematic view of a part of the structure of a collimating cylindrical lens grating plate according to the present invention;
FIG. 6 is a schematic diagram of the working principle of the backlight and the grating film according to the present invention;
FIG. 7 is a schematic diagram of the working principle of the first grating surface, the switch unit and the second grating surface in the present invention;
in the figure: 1. the light guide plate comprises a frame, a light guide plate, a grating film plane, a film grating surface, a condensing cylindrical lens grating plate, a light guide plate and a light guide plate, wherein the light guide plate is arranged on the frame, the light guide plate is arranged on the light guide plate 41, a first plane, 42, a first grating surface, 5, a liquid crystal array optical switch board, 51, a switch unit the LED light source comprises a collimating column lens grating plate, a second plane, a second grating surface, a liquid crystal 2D image display panel, a white light LED light bar, a control circuit, a first sub-switch unit, a second sub-switch unit and a third sub-switch unit.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.
The novel free 3D display without crosstalk and resolution loss as shown in fig. 1 comprises a frame 1, a backlight source, a grating film 3, a condensing lens grating plate 4, a liquid crystal column optical switch plate 5, a collimating lens grating plate 6, a liquid crystal 2D image display panel 7 and a control circuit 9 for controlling the liquid crystal column optical switch plate 5, wherein the liquid crystal column optical switch plate 5 is electrically connected with the control circuit 9, and the backlight source, the grating film 3, the condensing lens grating plate 4, the liquid crystal column optical switch plate 5, the collimating lens grating plate 6 and the liquid crystal 2D image display panel 7 are sequentially arranged in the frame 1 from inside to outside.
The frame 1 is a frame 1 with a black bottom plate, and preferably, the surface of the black bottom plate is a rough surface;
the backlight source comprises a light guide plate 2 and white light LED lamp strips 8 arranged on two sides of the light guide plate 2, wherein the light guide plate 2 is a high transparent plate with smooth planes on two sides.
As shown in fig. 1 and 2, preferably, the grating film 3 is made of a high transparent polymer film, one surface of the grating film 3 is a smooth planar grating film plane 31, the other surface is a film grating surface 32 provided with a plurality of triangular prism-shaped grating strips, each triangular prism-shaped grating strip is one grating unit of the grating film 3, the cross section of each triangular prism-shaped grating strip is triangular, the grating units of the plurality of grating films 3 are vertically arranged and closely arranged on the film grating surface 32, the grating film plane 31 is closely attached to the light guide plate 2 without gaps, and the film grating surface 32 faces the light collecting column lens grating plate 4.
As shown in fig. 1 and 3, preferably, the condensing cylindrical lens grating plate 4 is made of a high transparent acrylic plate, one surface of the condensing cylindrical lens grating plate 4 is a smooth first plane 41, the other surface is a first grating surface 42 provided with a plurality of semi-cylindrical grating strips, each semi-cylindrical grating strip is one grating unit of the condensing cylindrical lens grating plate 4, the cross section of the semi-cylindrical grating strip is semicircular, the grating units of the plurality of condensing cylindrical lens grating plates 4 are vertically arranged and closely arranged on the first grating surface 42, and the first grating surface 42 faces the grating film 3.
As shown in fig. 4, the liquid crystal column optical switch board 5 is a liquid crystal grating board having a plurality of switch units 51 arranged along a vertical direction, the liquid crystal surface of the liquid crystal column optical switch board 5 is arranged on a focal plane of the light collecting column lens grating board 4, the switch units 51 have 3 sub switch units with equal widths horizontally arranged side by side, the 3 sub switch units are respectively a first sub switch unit a, a second sub switch unit b and a third sub switch unit c from left to right, and the 3 sub switch units are respectively controlled by the control circuit 9;
as shown in fig. 1 and 5, preferably, the collimating cylindrical lens grating plate 6 is a high transparent acrylic plate, one surface of the collimating cylindrical lens grating plate 6 is a smooth second plane 61, the other surface is a second grating surface 62 provided with a plurality of semi-cylindrical grating strips, each semi-cylindrical grating strip is one grating unit of the collimating cylindrical lens grating plate 6, the cross section of each semi-cylindrical grating strip is a semicircle, and the grating units of the plurality of collimating cylindrical lens grating plates 6 are vertically arranged and closely arranged on the second grating surface 62, and the second grating surface 62 faces away from the liquid crystal column optical switch plate 5.
The grating units of the grating film 3, the grating units of the condensing lens grating plates 4 and the sub-switch units are in one-to-one correspondence, and the grating units of each 1 collimating lens grating plate are corresponding to the grating units of 3 condensing lens grating plates.
Further illustrating the working principle of the free 3D display of the present invention to achieve no crosstalk and no resolution loss is as follows:
referring to fig. 1, 2 and 6, a smooth plane 31 of the grating film 3 is tightly attached to the light guide plate 2, light emitted by the white LED light bar 8 is refracted and reflected by the light guide plate 2, enters a film grating surface 32, and is refracted by the film grating surface 32 and then becomes light which is nearly perpendicular to the surface of the light guide plate 2 to be emitted, so that quasi-parallel light output with a small divergence angle is formed; the quasi-parallel light is refracted and converged on the switch unit 51 of the liquid crystal array optical switch board 5 through the first grating surface 42, referring to fig. 7, when the display screen displays an image in a right view, the control circuit 9 controls the first sub switch unit a to be turned on, the light reaches the second grating surface 62 after passing through the first sub switch unit a, and the light is refracted through the grating unit of the second grating surface 62 and then is formed into a collimated light beam to be directionally projected on the liquid crystal 2D image display panel 7, at this time, the image displayed on the liquid crystal 2D image display panel 7 is in the right view, and the direction of the collimated light beam is unchanged after passing through the liquid crystal 2D image display panel 7 and is directly projected to the right view position, so that the right eye can see the right view; when the display screen displays the left view image, the first sub-switch unit a is closed, the control circuit 9 controls the second sub-switch unit b to be opened, the light passes through the second sub-switch unit b and then reaches the second grating surface 62, the light is refracted by the grating unit of the second grating surface 62 and then becomes a collimated light beam to be directionally projected on the liquid crystal 2D image display panel 7, at the moment, the image on the liquid crystal 2D image display panel 7 is the left view, and the direction of the light is unchanged after passing through the liquid crystal 2D image display panel 7, and the collimated light beam is directly projected to the left view position, so that the left view is seen by the left eye;
the grating units of the grating film 3, the grating units of the condensing column lens grating plate 4 and the sub-switch units are in one-to-one correspondence, so that light entering the backlight source uniformly enters each sub-switch sub-unit; the grating units of each 1 collimating cylindrical lens grating plate correspond to the grating units of 3 condensing cylindrical lens grating plates, so that the light rays emitted from each first sub-switch unit a and each second sub-switch unit b are refracted through the grating units of the second grating surface 62, are finally projected to the left viewpoint position and the right viewpoint position through the liquid crystal 2D image display panel 7, and form a left-right view.
When the display displays a 3D image, the third sub-switch unit c is always turned off, and the switches of the first sub-switch unit a and the second sub-switch unit b are controlled in a time-sharing manner, the first sub-switch unit a of the first group of switch units 51 corresponds to an image area of a right view point, the second sub-switch unit b of the next group of switch units 51 adjacent to the first group of switch units 51 corresponds to an image area of a left view point, the third sub-switch unit c of the first group of switch units 51 forms a dark image area, and an intersection area of the image area of the right view point and the image area of the left view point coincides with the dark image area, so that left and right parallax images with reversed orders can not be seen in the intersection area, only left images or right view images can be seen, and discomfort and dizziness are not caused.
When the display displays 2D images, the first sub-switch unit a, the second sub-switch unit b and the third sub-switch unit c are all opened, so that the 2D images can be watched at any position in front of the display, and the free 3D display can realize conversion between 2D images and 3D images.
When the display displays the 3D image, the scheme that the first sub-switch unit a is closed, the second sub-switch unit b and the third sub-switch unit c are alternately opened can be adopted, and the same 3D effect can be achieved.
According to the free 3D display, after the divergent light beams emitted by the white light LED lamp strips 8 are LED into the grating film 3 through the light guide plate 2, the light source light beams are converted into quasi-parallel light emitted along the orthogonal direction of the light guide plate 2, and then the quasi-parallel light is converged on the liquid crystal array optical switch plate 5 through the condensing cylindrical lens grating plate 4, the liquid crystal array optical switch plate 5 plays a role of a diaphragm, so that after the light beams reach the collimating cylindrical lens grating plate 6, the directional projection collimated light beams with good directivity can be formed, the light beam overlapping phenomenon of parallax images on the left and right sides of a view point area is eliminated, and the crosstalk of the parallax images on the left and right sides is avoided.
The invention adopts the directional projection backlight technology, the left parallax image and the right parallax image are displayed in a time-sharing way, and the display resolution of the liquid crystal 2D image display panel 7 is the resolution of the invention, and the resolution is free from loss.
The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.
Claims (5)
1. The utility model provides a novel no crosstalk and no free 3D display of resolution loss, has frame, backlight, liquid crystal are listed as optical switch board, collimating column lens grating board, liquid crystal 2D image display panel and is used for the timesharing control liquid crystal are listed as optical switch board and are carried out the control circuit that switches, the backlight the liquid crystal is listed as optical switch board collimating column lens grating board with liquid crystal 2D image display panel installs in proper order from interior to exterior in the frame, the backlight includes light guide plate and sets up the white light LED lamp strip in the light guide plate both sides, the grating face of collimating column lens grating board is dorsad liquid crystal is listed as optical switch board, its characterized in that: the backlight module comprises a backlight source, a light guide plate, a light condensing column lens and a light focusing column lens, wherein the light condensing column lens deflects emergent light of the backlight source into quasi-parallel light in the orthogonal direction of the light guide plate, the light condensing column lens is arranged between the light guide plate and the liquid crystal column lens, the light condensing column lens is tightly stuck to one side of the light guide plate, which is towards the liquid crystal column lens, and the light condensing column lens is tightly stuck to the light guide plate, the light condensing column lens is tightly stuck to the light condensing column lens, and the liquid crystal face of the liquid crystal column lens is arranged on the focal plane of the light condensing column lens;
the frame is provided with a black bottom plate, and the surface of the black bottom plate is a rough surface;
the light guide plate is a flat plate with smooth surfaces on both sides;
the grating film, the condensing cylindrical lens grating plate and the collimating cylindrical lens grating plate are respectively provided with grating units arranged along the vertical direction, the liquid crystal array optical switch plate is provided with switch units arranged along the vertical direction, each switch unit is provided with 3 sub-switch units with equal width, and the 3 sub-switch units are horizontally arranged side by side;
the grating units of the grating film, the grating units of the grating plates of the condensing lens and the sub-switch units are in one-to-one correspondence, and each 1 grating unit of the grating plates of the collimating lens corresponds to 3 grating units of the grating plates of the condensing lens.
2. The novel free 3D display without crosstalk and without resolution loss of claim 1, wherein: the grating film is a high-transparency polymer film with one smooth plane and the other surface provided with a plurality of triangular prism-shaped grating unit structures, and the smooth plane is closely attached to the light guide plate.
3. The novel free 3D display without crosstalk and without resolution loss of claim 1, wherein: one surface of the condensing column lens grating plate is a smooth plane, and the other surface of the condensing column lens grating plate is a grating plate surface on which a plurality of semi-cylindrical grating units are arranged.
4. The novel free 3D display without crosstalk and without resolution loss of claim 1, wherein: one surface of the collimating column lens grating plate is a smooth plane, and the other surface is a grating plate surface on which a plurality of semi-cylindrical grating units are arranged.
5. The novel free 3D display without crosstalk and without resolution loss of claim 1, wherein: the light guide plate, the condensing column lens grating plate and the collimating column lens grating plate are all high-transparency acrylic plates.
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| CN201710382971.0A CN107179612B (en) | 2017-05-26 | 2017-05-26 | Novel free 3D display without crosstalk and resolution loss |
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| CN201710382971.0A CN107179612B (en) | 2017-05-26 | 2017-05-26 | Novel free 3D display without crosstalk and resolution loss |
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| CN107179612B true CN107179612B (en) | 2023-06-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108051927A (en) * | 2018-02-07 | 2018-05-18 | 成都工业学院 | A kind of 3D display device |
| CN110068948B (en) * | 2019-04-08 | 2024-02-13 | 成都工业学院 | Display device with variable visual area |
| CN110780453A (en) * | 2019-11-19 | 2020-02-11 | 华侨大学 | Multi-view point full-resolution free stereo display screen |
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| EP0676902A2 (en) * | 1994-04-04 | 1995-10-11 | Projectavision, Inc. | A high efficiency light valve projection system |
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| US6498872B2 (en) * | 2000-02-17 | 2002-12-24 | Jds Uniphase Inc. | Optical configuration for a dynamic gain equalizer and a configurable add/drop multiplexer |
| JP4968664B2 (en) * | 2006-03-20 | 2012-07-04 | Ｎｌｔテクノロジー株式会社 | Display device and terminal device |
| CN103982818B (en) * | 2014-05-05 | 2016-03-30 | 京东方科技集团股份有限公司 | A kind of bore hole 3D backlight module, display device and display packing |
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| US4797843A (en) * | 1987-02-27 | 1989-01-10 | The Boeing Company | Parallel optical arithmetic/logic unit |
| EP0676902A2 (en) * | 1994-04-04 | 1995-10-11 | Projectavision, Inc. | A high efficiency light valve projection system |
| JPH10301110A (en) * | 1998-05-15 | 1998-11-13 | Omron Corp | Picture display device |
| CN102510465A (en) * | 2008-09-17 | 2012-06-20 | 松下电器产业株式会社 | Recording medium, playback device, and integrated circuit |
| CN207264027U (en) * | 2017-05-26 | 2018-04-20 | 华侨大学 | A kind of new no crosstalk and the free 3D display device without resolution loss |
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