CN1906930A - Display device - Google Patents
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- CN1906930A CN1906930A CNA2004800409319A CN200480040931A CN1906930A CN 1906930 A CN1906930 A CN 1906930A CN A2004800409319 A CNA2004800409319 A CN A2004800409319A CN 200480040931 A CN200480040931 A CN 200480040931A CN 1906930 A CN1906930 A CN 1906930A
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- display unit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3188—Scale or resolution adjustment
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
- G02B26/085—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting means being moved or deformed by electromagnetic means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
Abstract
A concept of improving a resolution by using human's visual characteristic is provided. An image can be viewed at a more improved resolution compared with an actual physical resolution, thereby obtaining the same effect that the resolution is physically improved. An image signal corresponding to one frame is separated into a first image signal and a second image signal, and a first image and a second image are formed using the first image signal and the second image signal. Then, the first image and the second image are respectively displayed onto a first position and a second portion, such that the viewer can view the image at an improved resolution.
Description
Technical field
The present invention relates to a kind of display unit, and more particularly, relate to a kind of display unit that resolution improves device that has, wherein this resolution improves the resolution that device can effectively improve projection display device.
Background technology
Recently, display unit trends towards light-duty, slim and large scale.Especially, large screen display device becomes more and more important in the demonstration field.
Along with the arrival of digital broadcasting, projection display device needs higher resolution.
Summary of the invention
Therefore, the present invention relates to a kind of the elimination basically because the display unit of one or more problems that limitation and defective caused of correlation technique.
One object of the present invention is, provide a kind of can be by simple structure and operation and effectively improve the display unit of resolution.
Part in other advantage of the present invention, purpose and the characteristic will illustrate in the following description that a part will be by understanding those skilled in the art to following research or by enforcement of the present invention simultaneously.Purpose of the present invention and other advantage can by it specification and claim and accompanying drawing in the structure that particularly points out realize and obtain.
In order to realize these purposes and other advantage and according to purpose of the present invention, as concrete enforcement of institute here and generalized description, a kind of display unit comprises: light source; Image formation unit, it is used to utilize the light that sends from light source and the picture signal of input to form image; Projecting cell, its image projection that is used for being formed by image formation unit is to screen; Displacement unit movably, it is used for moving the image that is presented on the screen; And driver element, it is used for the drive displacement unit.
In another aspect of this invention, display unit comprises: light source; Image formation unit, it is used to be used to the light that sends from light source and the picture signal of input forms image; Projecting cell, its image projection that is used for being formed by image formation unit is at screen; Be arranged on the light path altering unit on the light path that image projection passes through, it is used to change light path; And driver element, it is used to drive this light path altering unit.
In another aspect of this invention, display unit comprises: be used for alight; Liquid crystal indicator, it is used to utilize the light that sends from lamp and the picture signal of input to form image; Projecting cell, it is used for the image amplification and projects screen; Be arranged at the picture displacement unit between liquid crystal indicator and the projecting cell, it is used for moving the image that is presented on the screen; And driver element, it is used to drive the picture displacement unit.
And, the invention provides a kind of display unit, it comprises: be used for alight; Rod lens, it is used to make the light that sends from lamp evenly to distribute; Colour wheel, it is used for the light separate colors sent from rod lens; DMD (digital micro-mirror device), it is used for optionally changing according to picture signal the angle of reflection of the ruddiness, green glow and the blue light that send from colour wheel; Projecting cell, it is used for and will amplifies from the image of DMD and be incident upon screen; Be arranged at the picture displacement unit between DMD and the projecting cell, be used for moving the image that is presented on the screen; And driver element, it is used to drive the picture displacement unit.
In addition, the invention provides a kind of display unit, it comprises: be used for alight; Signal processing unit, it is used for a picture signal corresponding to a frame is decomposed into a plurality of subimage signals; Image formation unit, its fairing preface that is used to utilize a plurality of subimage signals and lamp to send forms some images; Projecting cell, its image projection that is used for being formed by image formation unit is at screen; Be arranged at the displacement unit between image formation unit and the screen, its be configured to periodically to move in case on the diverse location on the screen display image; And driver element, it is used for the drive displacement unit.
And, the invention provides a kind of display unit, it comprises: be used for alight; Signal processing unit, it is used for a picture signal corresponding to a frame is decomposed into a plurality of subimage signals; Image formation unit, its fairing preface that is used to utilize these a plurality of subimage signals and lamp to send forms image; Projecting cell, its image projection that is used for being formed by image formation unit is at screen; Light transmissive element, it is arranged on the light path between image formation unit and the screen, and is configured to periodically move so that utilize the refraction of light to move the image that is presented on the screen to a plurality of positions.
Should be appreciated that above-mentioned all is exemplary and indicative for recapitulative explanation of the present invention and ensuing detailed description, and will provide further explanation to the present invention for required protection.
Description of drawings
Be included to provide for further understanding of the present invention, and the accompanying drawing of being integrated with and constitute the application's part, embodiments of the invention have been described, and have been used from explanation principle of the present invention with specification one.In the accompanying drawings:
Fig. 1 shows with resolution of the present invention and improves the combine view of the display unit used of device;
Fig. 2 has the view that resolution improves the display unit of device according to another embodiment of the present invention;
Fig. 3 shows in display unit according to the present invention, the view of the operation example of displacement plate;
Fig. 4 shows in display unit according to the present invention, is used as the operating principle view of the displacement plate of picture displacement unit;
Fig. 5 and 6 shows the view of the light different examples of the displacement of the motion of the displacement plate in the display unit according to the present invention that are projected on the screen;
Fig. 7 is the view that utilizes displayable first image of display unit according to the present invention and second image;
Fig. 8 is the perspective view that improves device according to resolution of the present invention;
Fig. 9 is the decomposition diagram that is shown in the resolution raising device among Fig. 8;
Figure 10 is the bottom decomposition diagram according to rotating element of the present invention;
Figure 11 is the decomposition diagram according to retaining element of the present invention;
Figure 12 is the view that the resolution that comprises bobbin according to the present invention improves device.
Embodiment
Below will be in detail with reference to embodiments of the invention, the example of these embodiment is shown in the drawings.In any possible place, identical Reference numeral is used in reference to same or analogous part of generation in whole accompanying drawing.
Resolution is per square inch pixel count on the display unit.That is, resolution is used as the tolerance of the precision of representing display image.
In order to improve resolution, traditional display unit uses physical method to improve pixel count.Yet the present invention utilizes human visual characteristic to improve resolution.
According to the present invention, image can be observed to compare higher resolution with actual physics resolution, thereby obtains physically to be improved identical effect with resolution.
Although in the detailed description hereinafter, be broken down into the plurality of sub image corresponding to the picture signal of a frame, for example first picture signal and second picture signal.But first picture signal and second picture signal show as first image and second image order on the primary importance of screen and the second place respectively, so that be enhanced as resolution owing to observer's visual characteristic is felt all right the observer.
For example, the primary importance on the screen and the second place can have under the pixel size or on spacing, and this spacing can be spaced apart along vertical, level or diagonal.
Especially, according to the present invention, light path altering unit is used for first image and second image are presented at respectively the primary importance and the second place of screen.
Light path altering unit is used light transmission component, and light path changes according to the displaced position of light transmission component and displacement angle.
Fig. 1 has the view that resolution improves the display unit of device according to an embodiment of the invention.
In Fig. 1, show the illuminator of the projection type television set that utilizes reflection LCD (LCD).In the reflection-type illuminator of 3 PBS (polarization beam splitter) system that is shown in Fig. 1, the light that penetrates from lamp 1 passes through convergent lens, and incides on first dichronic mirror 2.First dichronic mirror, 2 reflect red R and green glow G, and transmit blue B.
The ruddiness R and the green glow G of reflection incide on second dichronic mirror 3.Second dichronic mirror 3 is transmitted to ruddiness R on the one PBS 4a, and green glow G is reflexed on the 2nd PBS 4b.Blue light B (for example passing through reflective mirror) from first dichronic mirror 2 shines on the 3rd PBS 4c.As a result, ruddiness R, green glow G and blue light B incide respectively on first, second and the 3rd PBS 4a that are separately positioned on before first, second and the 3rd LCD panel 5a, 5b, the 5c, 4b, the 4c.
Ruddiness R, green glow G and blue light B of inciding first, second and the 3rd PBS 4a, 4b, 4c respectively are reflected, and incide respectively subsequently on first, second and the 3rd LCD panel 5a, 5b, the 5c.The phase place of ruddiness R, green glow G and blue light B is changed by first, second and the 3rd LCD panel 5a, 5b, 5c respectively.After this, have ruddiness R, the green glow G of the phase place after the change and blue light B from LCD panel 5a, 5b, 5c reflection, and respectively by transmission through first, second and the 3rd PBS 4a, 4b, 4c.
According to the picture signal from signal processing unit (not shown) input, image is displayed on first, second and the 3rd LCD panel 5a, 5b, the 5c.
First, second and the 3rd LCD panel 5a, 5b, 5c are passed in transmission, then pass first, second redness, green and blue image with the 3rd PBS 4a, 4b, 4c and are combined by X-prism 6.After this, the image after the combination passes displacement plate 11, and incides on the projecting lens 10.
The image that passes projecting lens 10 is projected on the screen 12.
In this, displacement plate 11 can be set between X-prism 6 and the projecting lens 10, or is arranged between projecting lens 10 and the screen 12.
In addition, although figure 1 illustrates the illuminator of using reflection type LCD, spectroscope and some PBS, also can use transmission-type LCD to replace reflection type LCD.Can also use liquid crystal over silicon (LCoS) as reflection type LCD.
In addition, though Fig. 1 shows three LCD panels, also can only use a LCD panel, and the structure of optical system can change also with different ways.
In addition, the present invention can be applied to projecting apparatus and projection TV.
That is, the present invention can embody with many different forms, and should not be considered to the embodiment that is limited to mention herein.
Fig. 2 shows the view of display unit according to another embodiment of the present invention.More particularly, explain according to digital optical processing of the present invention (DLP) optical system with reference to Fig. 2 below.
The DLP optical system provides the light to digital micro-mirror device (DMD) 14 to be illuminated, and according to figure signal, determine whether to allow respective micromirrors among the DMD 14 with rayed to the screen that is in on-state, or with rayed to the non-screen that is in off state.
With reference to Fig. 2, the DLP optical system comprises lamp 17, rod lens 18, and colour wheel 19, convergent lens 13, prism 15, DMD 14, displacement plate 11 and projecting lens 16.Lamp 17 produces light, and rod lens 18 transmissions are by the light of lamp 17 generations.Colour wheel 19 will be separated into ruddiness, green glow and blue light by the white light of rod lens 18.Convergent lens 13 is assembled the light by colour wheel 19, and prism 15 reflexes to the light of being assembled on the DMD 14.DMD 14 makes incident light expose to displacement plate 11 by prism 15.Displacement plate 11 according to the time chien shih light displacement that comes from DMD 14 reflection.Projecting lens 16 will be by the light amplification of displacement plate 11, and the optical projection after will amplifying is to screen 12.
Based on this structure, the operation of DLP optical system will will be described hereinafter.The be reflected curved inner surface of device of the white light that sends from lamp 17 focuses on, and the light after this focusing passes optical channel or rod lens 18.
The brightness that is projected to the light on the screen 12 the most at last need be uniform.Rod lens 18 is fulfiled this function, thereby it is the important optical element in the projection display device.
After this, light reflects by convergent lens 13 and by prism 15, so that the directed DMD14 of light.
Prism 15 can reflect or transmitted light fully according to the incident angle of light.
According to the connection/off state in response to the micro mirror of the DMD 14 of sampled pixel value control, the light that is incident on the DMD 14 can be pointed to screen 12 once more.
The image that reflects and point to screen 12 from DMD 14 is by displacement plate 11 and projecting lens 16.In this course, image is exaggerated and is projected onto on the large-screen 12.
And displacement plate 11 can be set between DMD 14 and the prism 15.
According to the position of displacement plate 11 and/or the cyclic variation of angle, light is projected onto on the diverse location of screen 12.
According to the embodiment of Fig. 1 and Fig. 2, displacement plate 11 can be set on the precalculated position between screen and the image formation unit, to be used for forming image by the combination of R, G and B.
Simultaneously, in being shown in the image formation unit of Fig. 1 and 2, be separated into first picture signal and second picture signal by signal processing unit corresponding to the picture signal of a frame.After this, first picture signal and second picture signal are converted to first image and second image respectively by the combination of R, G and B.
In Fig. 1, image formation unit can be provided with first, second and the 3rd LCD panel 5a, 5b and 5c, first, second and the 3rd PBS 4a, 4b and 4c and X-prism 6.
In Fig. 2, image formation unit can be provided with colour wheel 19, convergent lens 13 and DMD14.
That is, be separated into a plurality of picture signals corresponding to the picture signal of a frame, and be processed into a plurality of images, then be shown.Picture signal corresponding to a frame can be broken down into " n " individual picture signal, and is processed into " n " individual image, then is presented on " n " the individual or still less individual diverse location on the screen.
According to the present invention, the demonstration time of an image equaled with the time that quantity drew divided by image demonstration time of a two field picture.
Yet, the present invention can make the observer feel that good resolution looks like to be improved by following method: will decompose into first picture signal and second picture signal corresponding to the picture signal of a frame, and first picture signal and second picture signal be processed into first image and second image, then order shows this first image and second image on first and second positions of screen.
Fig. 3 shows the operational view of the displacement plate in display unit according to the present invention.
Particularly, Fig. 3 (a) shows the situation that does not have displacement plate 11 or displacement plate 11 not to have motion.In this case, be displayed on the same position of screen from prism or the next image of projecting lens projection.
Fig. 3 (b) shows the situation that displacement plate 11 rotates in the counterclockwise direction, and Fig. 3 (c) shows the situation that displacement plate 11 is rotated in a clockwise direction.
If displacement plate 11 changes to state (b) or (c), image is refracted from state (a) in by displacement plate 11, so that this image is presented on the diverse location of screen.
That is, because displacement plate 11 plays the effect of light path altering unit, the image of institute's projection is owing to the displacement of displacement plate 11 is moved, thereby this image is presented on the diverse location of screen according to the motion of displacement plate 11.
Thereby displacement plate 11 according to the present invention is presented on the diverse location of screen image as the picture displacement unit.
Fig. 4 shows in display unit according to the present invention operating principle view as the displacement plate of picture displacement unit.
The movement degree of light on screen 12 can calculate according to thickness T, inclination angle (angle of light degree) θ 1 and the refractive index n 2 of displacement plate.The thickness of displacement plate, inclination angle and refractive index can be determined according to light required movement degree on screen 12.
The thickness of displacement plate, inclination angle and refractive index can draw by following formula 1 given snell law.
[formula 1]
n
1sinθ
1＝n
2sinθ
2
Wherein, n1 is the refractive index of air;
N2 is the refractive index of displacement plate;
Therefore, can draw by following formula 2 by the optical path difference D between the light of displacement plate 11.
[formula 2]
D＝(T/cosθ
2)sin(θ
1-θ
2)
cosθ
2＝T/x，sin(θ
1-θ
2)＝D/x，θ
2＝sin
-1(n
1sinθ
1/n
2)
Wherein T is the thickness of displacement plate;
N1 is the refractive index of air;
N2 is the refractive index of displacement plate;
X is the optical path length of refract light in displacement plate.
In addition, pass optical path difference D between the light of displacement plate 11 has determined the light of actual displayed on screen 12 according to the multiplication factor of projecting lens displacement.
Preferably, the refractive index of displacement plate 11 drops in 1.4 to 2.0 the scope, but other scope has also been contained in the present invention.
The present invention uses the refraction of light transmission component and light, so that cause optical path difference D.
Reflective mirror is used to change light path.
That is, if change the reflection of light angle, catoptrical light path can be changed according to the angle that is arranged on the reflective mirror on the light path.
For the method for utilizing reflection change light path, to compare with the method for utilizing anaclasis to change light path, the change of light path is vulnerable to the influence that the reflective mirror angle changes.Thereby, if utilize reflection to change light path, then need to carry out precision control.
According to the present invention, the degree of displacement of image can be greater than or less than the size of a pixel.Yet because the degree of displacement of image is very little, light path altering unit must be accurately controlled, so that can be moved in very little scope by projection lens institute image projected.
Therefore, use the advantage of the light path altering unit of light transmission component to be, it is easy to make, and can greatly reduce error rate.
Especially, as shown in Figure 4, if light incides on the same position of light transmission component (for example displacement plate 11), optical path difference D will occur, but the direction of propagation of light does not change.
On the other hand, using reflective mirror to change under the situation of light path, even light is incided on the same position of reflective mirror, the direction of propagation of light will change according to the angle of reflective mirror, thereby need control more accurately the position and the arbitrary parameter of reflective mirror.
Fig. 5 and Fig. 6 show according to being incident upon light on the screen in the display unit of the present invention along with the view of the displacement of the motion of displacement plate 11.In these accompanying drawings, T and T1 represent the time.
With reference to Fig. 5, in the display unit with rectangular pixels structure, displacement plate 11 periodically moves, thereby the position of the image on the screen 12 also is moved.
With reference to the conventional pixel structure among Fig. 5 (a), in preset time (T=0-T1), identical image is presented on the relevant position identical on the screen.Yet with reference to Fig. 5 (b) and 5 (c), when T=0 and T=T1, different images is presented on the diverse location of screen.Thereby, can identify double resolution by using identical pixel quantity.
For example, the picture signal of a frame as above is decomposed into first and second picture signals with discussing like that.Then, in the time will showing this picture signal of a frame, first and second picture signals are shown as first and second images of original image in proper order, and these images are offset mutually.
For example, suppose in association area identical image information display 1/60 second.According to the present invention, image information is separated into first image information and second image information now, and then, first image information and second image information are presented on first and second positions of screen respectively and in proper order, and wherein each image information display is 1/120 second.
Fig. 7 is from first image that comes out corresponding to the separation of images of a frame according to the present invention and the explanatory view of second image.
Shown in Fig. 7 (a) and 7 (b), be separated into first image (for example, the odd data image) and second image (for example, the even data image) corresponding to the image of a frame, and first image can separate with second image according to locations of pixels.
The display position of first image (odd data) and second image (even data) is different, and this displacement can be moved by displacement plate 11 with as above discussing like that.
Turn back to Fig. 5 (b), the display position of first image (odd data) and second image (even data) is along the angular direction is offset.In Fig. 5 (c), the skew of the display position along continuous straight runs of first image (odd data) and second image (even data).
Fig. 6 shows the picture position that shows according to the time in the diamond pixels structure on screen.
With reference to the conventional pixel structure of Fig. 6 (a), in preset time (T=0-T1), identical image is displayed on the same relevant position of screen.But with reference to Fig. 6 (b), when time T=0 and T=T1, different images is presented on the diverse location of screen.Thereby, according to the present invention, can use identical pixel quantity to realize double resolution.
Fig. 8 is the perspective view that improves device according to resolution of the present invention, and Fig. 9 is the decomposition diagram that is shown in the resolution raising device among Fig. 8.
Figure 10 is the bottom decomposition diagram according to the rotating element in the driver of the present invention, and Figure 11 is the decomposition diagram according to retaining element of the present invention.
With reference to Fig. 8 to Figure 11, the resolution that is used to improve display unit improves device (driver) and comprises retaining element 20 and rotating element 30.
Retaining element 20 is arranged on the light path between image formation unit and the screen, and has standing part 21 on its side, but so that this standing part fixed drive.Although illustrated in the accompanying drawings is screw hole, also can use other elements, so that at display unit positioned internal retaining element.
Thereby the resolution that retaining element 20 is fixedly secured in the light path improves device.
In addition, magnet 23 and yoke 22 are formed on the side of retaining element 20.Preferably, magnet 23 and yoke 22 can be formed on the one or both sides of retaining element 20.
Rotating element 30 is rotatably connected to the inside of retaining element 20.
Rotating element 30 forms rectangle or rhombus and holds light path.Rotating element 30 has the structure that is suitable for fixed displacement plate 31.
As mentioned above, displacement plate 31 is light transmission components, the display position that it rotates a bit of time at a predetermined angle and changes image.
For this purpose, displacement plate 31 can be arranged perpendicular to light path or with respect to the light path predetermined angle that tilts.Thereby the incident angle that is incident on the light on the displacement plate is periodically variable.
Rotating element 30 comprises the axle 32 that is arranged on both sides, and can be rotatably connected to retaining element 20 by axle slot 27.Preferably, rotating element 30 also comprises first and second bearings 33 and 36.At this moment, axle 32 pivot axis as rotating element 30 or displacement plate 31, and this pivot axis is perpendicular to light path.
Clutch shaft bearing 33 forms substantial cylindrical, and axle 32 is inserted in this clutch shaft bearing 33.Clutch shaft bearing 33 is arranged on the axle slot 27 of retaining element 20.
The external diameter that second bearing 36 makes rotating element 30 is even as big as making can the be fixed inner surface of element 20 of rotating element 30 maintain.
That is, be inserted into the rotating element 30 of retaining element 20 because this second bearing 36 and can not be along the left side to moving.And sheet spring 24 is formed on the right side of clutch shaft bearing 33, so that rotating element 30 can not be along the right side to moving.
The elasticity of sheet spring 24 is fixedly being guaranteed suitable motion in the rotating element, so as rotating element 30 stably mode rotate.
In this state, only be that an end of sheet spring 24 is connected to retaining element 20, this sheet spring 24 supports rotating element 30.
In other words, second housing 26 is as flexible member, and it can be fixed to retaining element 20 with rotating element 30 in the predetermined motion of guaranteeing rotating element 30.
Side at rotating element 30 is provided with coil 35, that is, this coil is formed on the opposite side of retaining element 20 internal magnets 23.
With reference to Figure 12, in order to be easy to install coil 35, bobbin 38 is set at the side of rotating element 30, thereby coil 35 can be supported by bobbin 38 and fixing.This coil is rectangle or runway shape.Therefore, rotating element 30 can pass through along sense of current moving magnet 23.
So, when by electric wire 34 during to coil 35 power supply, electric current flowing through coil 35, and owing to produce gravitation and repulsion with the interaction that is arranged on the magnet 23 on the retaining element 20, thereby cause rotating element 30 to rotate.Rotating element 30 according to the sense of current that is applied to coil 35 and around the pivot axis clockwise or be rotated counterclockwise.
Although do not illustrate, according to another embodiment of the present invention, magnet can be set at the side of rotating element.In this embodiment, bobbin is set at the side of retaining element and relative with magnet, and coil is supported by this bobbin.
As shown in figure 10, displacement plate 31 is connected to rotating element 30.This displacement plate is positioned on the projection 39 that is formed at rotating element 30 1 sides, and fixing by joint element 37 subsequently.The detail shape of projection 39 is shown in Fig. 9.
In addition, displacement plate 31 can be with rotating element 30 castings.In this case, displacement plate 31 can be fixed to rotating element 30, and need not any extra joint element 37.
As shown in figure 11, guide vane end stop 28 is set at the anglec of rotation of the inside of retaining element 20 with restriction rotating element 30.Thereby because this guide vane end stop, externally under impact or faulty operation or the excessive operation, the anglec of rotation of rotating element 30 is limited under the predetermined angular.
Resolution of the present invention improves device and is set on the light path of display unit, and owing to the interaction between coil that Control current determined 35 that applies and the magnet 23 is rotated.
Preferably, the rotating range of rotating element 30 can be set at ± 0.75 ° in, and can be rotated into it periodically is on the primary importance and the second place.
In the picture signal that applies a frame, rotating element 30 rotates at least once, thereby the resolution that the observer visually feels can be improved significantly.
As mentioned above, the image of a frame is broken down into first image and second image, and periodically is presented on the diverse location of screen.As if by this way, the observer feels that visually a large amount of pixels are arranged, thereby can use identical pixel count and improve resolution.
Therefore, the resolution of large scale display unit can improve effectively with lower cost.
It will be understood by those skilled in the art that the present invention can make multiple improvement and variation.Thereby improvement of the present invention and the variation in those scopes that fall within claims and equivalent thereof contained in the present invention.
Industrial applicibility
The present invention is applicable to projection display device.
Claims (37)
1. display unit comprises:
Light source;
Image formation unit, it is used to use the light that sends from light source and the picture signal of input to form image;
Projecting cell, its image projection that is used for being formed by image formation unit is to screen;
Displacement unit movably, it is used for moving the image that is presented on the screen; With
Driver element, it is used for the drive displacement unit.
2. display unit according to claim 1, wherein, the angle of displacement unit can change.
3. display unit according to claim 1, wherein, displacement unit can periodically rotate.
4. display unit according to claim 1, wherein, displacement unit has central shaft, and rotates in predetermined angular around this central shaft.
5. display unit according to claim 1, wherein, driver element comprises:
Be applied with the coil of electric current; With
The magnet that is oppositely arranged with described magnet.
6. display unit according to claim 1, wherein, displacement unit comprises:
Rotating element is fixed with displacement plate on it; With
Retaining element, this rotating element rotatably is connected with it.
7. display unit according to claim 6, wherein rotating element comprises:
Be arranged at the coil in this rotating element; With
Be arranged in this retaining element and the magnet relative with this coil.
8. display unit according to claim 7, wherein magnet is multipole magnet.
9. display unit according to claim 7, wherein magnet is homopolar magnet.
10. display unit according to claim 7, wherein rotating element comprises the bobbin of extension with support coils.
11. display unit according to claim 6, wherein driver element comprises:
Be arranged at the magnet in the rotating element; With
Be arranged in the retaining element and the coil relative with this magnet.
12. display unit according to claim 11, wherein magnet is multipole magnet.
13. display unit according to claim 11, wherein magnet is homopolar magnet.
14. display unit according to claim 6, wherein rotating element has the axle that stretches out from its both sides, and retaining element has a slot, thereby rotating element is rotatably connected to retaining element.
15. display unit according to claim 14 also comprises the bearing that is arranged on the axle.
16. a display unit, it comprises:
Light source;
Image formation unit, it is used to use the light that sends from light source and the picture signal of input to form image;
Projecting cell, its image projection that is used for being formed by image formation unit is to screen;
Light path altering unit, it is arranged on the light path that image projection passes through, and is used to change light path; With
Driver element, it is used to drive light path altering unit.
17. display unit according to claim 16, wherein light path altering unit has central shaft, and it rotates in predetermined angular around this central shaft.
18. display unit according to claim 16, wherein driver element comprises:
Be applied with the coil of electric current; With
The magnet that is oppositely arranged with this magnet.
19. display unit according to claim 16, wherein light path altering unit comprises:
Be fixed with the rotating element of displacement plate on it; With
The rotatably connected retaining element of this rotating element.
20. display unit according to claim 6, wherein rotating element comprises:
Be arranged at the coil in the rotating element; With
Be arranged in the retaining element and the magnet staggered relatively with coil.
21. display unit according to claim 20, wherein magnet is multipole magnet.
22. display unit according to claim 20, wherein magnet is homopolar magnet.
23. display unit according to claim 20, wherein rotating element comprises that extension is to support the bobbin of this coil.
24. display unit according to claim 19, wherein driver element comprises:
Be arranged at the magnet in this rotating element; With
Be arranged in this retaining element and the coil staggered relatively with this magnet.
25. display unit according to claim 24, wherein magnet is multipole magnet.
26. display unit according to claim 24, wherein magnet is homopolar magnet.
27. display unit according to claim 19, wherein this rotating element has the axle that stretches out from its both sides, and this retaining element has a slot, thereby this rotating element is rotatably connected to this retaining element.
28. display unit according to claim 27 also comprises the bearing that is arranged on the axle.
29. a display unit comprises:
Be used for alight;
Liquid crystal indicator, it is used to use the light that sends from lamp and the picture signal of input to form image;
Projecting cell, it is used for enlarged image and it is projected to screen;
The picture displacement unit, it is arranged between liquid crystal indicator and the projecting cell, is used to be offset the image that is presented on the screen; With
Driver element, it is used to drive the picture displacement unit.
30. display unit according to claim 29, wherein driver element comprises:
Be applied with the coil of electric current; With
Be used to produce the magnet in magnetic field.
31. a display unit, it comprises:
Be used for alight;
Rod lens, it is used to make the light that sends from lamp evenly to distribute;
Colour wheel, it is used to separate the color of the light that sends from rod lens;
DMD (digital micro-mirror device), it is used for optionally changing according to picture signal the angle of reflection of the ruddiness, green glow and the blue light that send from colour wheel;
Projecting cell, it is used for the image from DMD being amplified and it being projected to screen;
The picture displacement unit, it is arranged between DMD and the projecting cell, is used to be offset the image that is presented on the screen; With
Driver element, it is used to drive the picture displacement unit.
32. display unit according to claim 31, wherein driver element comprises:
Be applied with the coil of electric current; With
Be used to produce the magnet in magnetic field.
33. a display unit comprises:
Be used for alight;
Signal processing unit, it is used for and will decomposes into a plurality of subimage signals corresponding to the picture signal of a frame;
Image formation unit, it is used to utilize a plurality of subimage signals and forms image from the fairing preface that lamp sends;
Projecting cell, its image projection that is used for being formed by image formation unit is to screen;
Displacement unit, it is arranged between image formation unit and the screen, and its be configured to periodically to move in case on the diverse location of screen display image; With
Driver element, it is used for the drive displacement unit.
34. display unit according to claim 33, wherein signal processing unit will become a plurality of subimage signals corresponding to the picture breakdown of a frame according to locations of pixels;
35. display unit according to claim 33, wherein driver element comprises:
Be applied with the coil of electric current; With
Be used to produce the magnet in magnetic field.
36. a display unit, it comprises:
Be used for alight;
Signal processing unit, it is used for and will decomposes into a plurality of subimage signals corresponding to the picture signal of a frame;
Image formation unit, it is used to utilize a plurality of subimage signals and forms image from the fairing preface that lamp sends;
Projecting cell, its image projection that is used for being formed by image formation unit is to screen;
Light transmissive element, it is arranged in the light path between image formation unit and the screen, and it is configured to periodically move so that utilize the refraction of light will be presented at image on the screen to a plurality of offsets; With
Driver element, it is used to drive light transmissive element.
37. display unit according to claim 36, wherein the light projecting unit has central shaft, and it rotates in predetermined angular around this central shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040037917 | 2004-05-27 | ||
| KR1020040037917A KR20050113326A (en) | 2004-05-27 | 2004-05-27 | Apparatus for inproving resolution and display apparatus thereof |
| KR1020040042293 | 2004-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1906930A true CN1906930A (en) | 2007-01-31 |
Family
ID=37287953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800409319A Pending CN1906930A (en) | 2004-05-27 | 2004-11-02 | Display device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20050113326A (en) |
| CN (1) | CN1906930A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754028B (en) * | 2008-12-22 | 2012-01-04 | 华晶科技股份有限公司 | Method for improving image resolution |
| CN104717438A (en) * | 2015-03-02 | 2015-06-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN109856898A (en) * | 2017-11-30 | 2019-06-07 | 中强光电股份有限公司 | Projector, bare engine module, image resolution enhancement device and its driving method |
| CN110082999A (en) * | 2018-01-26 | 2019-08-02 | 中强光电股份有限公司 | Projector, light engine and picture element offset assembly |
| CN110349539A (en) * | 2019-06-24 | 2019-10-18 | 深圳市华星光电半导体显示技术有限公司 | A kind of display driving method of display panel, display panel and display device |
| CN113219769A (en) * | 2021-05-24 | 2021-08-06 | 青岛海信激光显示股份有限公司 | Optical machine module and projection equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100794769B1 (en) * | 2005-12-28 | 2008-01-15 | 엘지전자 주식회사 | Pixel Enhancement Actuator with Offbeam Interception Material |
| KR102531925B1 (en) * | 2017-11-08 | 2023-05-16 | 엘지전자 주식회사 | Projector and method for operating thereof |
-
2004
- 2004-05-27 KR KR1020040037917A patent/KR20050113326A/en not_active Application Discontinuation
- 2004-11-02 CN CNA2004800409319A patent/CN1906930A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754028B (en) * | 2008-12-22 | 2012-01-04 | 华晶科技股份有限公司 | Method for improving image resolution |
| CN104717438A (en) * | 2015-03-02 | 2015-06-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104717438B (en) * | 2015-03-02 | 2018-12-14 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN109856898A (en) * | 2017-11-30 | 2019-06-07 | 中强光电股份有限公司 | Projector, bare engine module, image resolution enhancement device and its driving method |
| CN109856898B (en) * | 2017-11-30 | 2021-12-31 | 中强光电股份有限公司 | Projector, optical-mechanical module, image resolution enhancement device and driving method thereof |
| CN110082999A (en) * | 2018-01-26 | 2019-08-02 | 中强光电股份有限公司 | Projector, light engine and picture element offset assembly |
| CN110082999B (en) * | 2018-01-26 | 2021-11-16 | 中强光电股份有限公司 | Projector, optical engine and pixel shifting device |
| CN110349539A (en) * | 2019-06-24 | 2019-10-18 | 深圳市华星光电半导体显示技术有限公司 | A kind of display driving method of display panel, display panel and display device |
| CN113219769A (en) * | 2021-05-24 | 2021-08-06 | 青岛海信激光显示股份有限公司 | Optical machine module and projection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050113326A (en) | 2005-12-02 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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