CN102184678A - Splicing display unit and large-screen display device - Google Patents
Splicing display unit and large-screen display device Download PDFInfo
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- CN102184678A CN102184678A CN 201110114695 CN201110114695A CN102184678A CN 102184678 A CN102184678 A CN 102184678A CN 201110114695 CN201110114695 CN 201110114695 CN 201110114695 A CN201110114695 A CN 201110114695A CN 102184678 A CN102184678 A CN 102184678A
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Abstract
The invention relates to a large-screen display technology, in particular to a splicing display unit and a seamless spliced large-screen display device. The splicing display unit comprises collimating backlight, a display device, an image amplifying device and a screen which are arranged in turn, wherein the display device comprises a display area and a frame area positioned on the periphery of the display area; the image amplifying device corresponds to the display area of the display device; and an image in the display area can be amplified to an eccentric micro lens array in the frame area. The large-screen display device consists of a plurality of the splicing display units. Because the image emitted from the display device can cover the overall display device after passing through the image amplifying device, seamless connection can be realized between adjacent splicing display units when performing splicing display.
Description
Technical field
The present invention relates to Large Screen Display Technology, relate in particular to a kind of tiled display unit and seamless splicing large screen display device.
Background technology
Existing large screen display device is spliced by some display units.Because the needs of driving circuit and production technology, around the image display area of every display unit, need to remain with the frame of certain space, this frame is no image display area, promptly image can not be shown to frame.Therefore, form bigger splicing seams between the adjacent display unit of each piece of large screen display device easily, this splicing seams width is the summation of adjacent two display unit border widths, cause on every display unit and adjacent each piece display unit picture displayed to be cut apart, destroyed the continuity and the integrality of display image, made the visual effect variation of whole picture.Therefore, eliminate the no image display area of display unit frame, realize real seamless spliced be the direction of large-screen splicing technical research, be the technical barrier that needs to be resolved hurrily.
Summary of the invention
The large screen display device that the technical matters that the present invention solves provides a kind of tiled display unit and forms with this tiled display unit makes that the shown image of this large screen display device is complete, continuous, realizes seamless spliced demonstration.
For solving the problems of the technologies described above, the tiled display unit that the present invention adopts comprises collimated back, display device, image amplifying device and the screen that sets gradually, this display device comprises the viewing area and is positioned at this viewing area frame region on every side that this image amplifying device is the corresponding eccentric microlens array that also image of this viewing area can be amplified to frame region with the viewing area of display device.The image here is amplified to the image that viewing area that frame region is meant display device projects on the screen and is amplified by image amplifying device, and enlarged image has covered the frame region of display device, make thus and when carrying out tiled display, can realize seamless link between the contiguous concatenation display unit.
One of improve: the one or more eccentric lenticule of described eccentric microlens array is corresponding with one or more pixels of this display device and caliber size is consistent.Correspondence is meant that the lenticular center of one or more off-centre is corresponding with the center of one or more pixels.
Two of improvement: the eccentric lenticular offset in the described eccentric microarray from array center to around increase gradually.
Three of improvement: described collimated back comprises reflector plate, light-emitting area, collimation layer and the correcting layer that sets gradually, this correcting layer places described display device below and aims at its viewing area, this collimation layer is the micro collimating lens array, this correcting layer is a microprism array, and each micro collimating lens of collimation layer is aimed at each microprism of correcting layer respectively;
Each micro collimating lens comprises light beam convergent part and beam collimation portion disposed thereon, the bottom surface of this light beam convergent part is provided with aperture, this beam collimation portion comprises standard lens and around one or more layers inclination relay lens of this standard lens, the aperture of this light beam convergent part of the centrally aligned of this standard lens;
Each microprism comprises the planar section aimed at the standard lens of this micro collimating lens and prism rotating part corresponding with each layer inclination relay lens of this micro collimating lens and that aim at, and this prism rotating part is used for the light with the inclination relay lens outgoing of this micro collimating lens is roughly deflected to the axis direction of this aperture.
Four of improvement: the standard lens of described micro collimating lens and the distance of described aperture are its focal length of lens, and the inclination relay lens of described micro collimating lens and the distance of described aperture are its focal length of lens.
Five of improvement: the bottom surface of described light beam convergent part part beyond aperture is provided with reflectance coating.
For solving the problems of the technologies described above, the large screen display device that the present invention adopts comprises some above-mentioned tiled displays unit.
Compared with prior art, beneficial effect is: therefore the image of display device outgoing of the present invention when carrying out tiled display, can realize seamless link between the contiguous concatenation display unit through covering whole display device behind the image amplifying device.
Description of drawings
Fig. 1 is the structural representation of the tiled display unit of embodiment;
Fig. 2 is the effect synoptic diagram of the image amplifying device of embodiment;
Fig. 3 is the spliced effect synoptic diagram in the tiled display unit of embodiment;
Fig. 4 is the structural representation of the collimated back of embodiment;
Fig. 5 is the micro collimating lens of embodiment and the structural representation of microprism;
Fig. 6 is the collimated back light path synoptic diagram of embodiment.
Embodiment
The present invention is described further below in conjunction with drawings and Examples.
The large screen display device of present embodiment is made up of several tiled display unit, and as shown in Figure 1, each tiled display unit comprises from bottom to top collimated back 10, display device 20, image amplifying device 30 and the screen 40 that stack successively is provided with.
As shown in Figure 2, this display device 20 comprises viewing area 21 and is positioned at this viewing area 21 frame region 22 on every side.This image amplifying device 30 for the viewing area 21 corresponding eccentric microlens arrays that also image of this viewing area 21 can be amplified to frame region 22 of display device 20.The eccentric lenticule of each of this off-centre microlens array all has certain offset (offset is by the enlargement factor decision of each pixel), and offset increases around the middle mind-set of array gradually.Eccentric lenticule roughly is the spherical crown shape, and the bottom surface of spherical crown is plane and over against the surface of display device 20, and one of them end face of spherical crown (away from array center's direction) is the plane, and is approximately perpendicular to the spherical crown bottom surface.
Wherein, can adopt various corresponding forms between eccentric lenticule and display device 20 pixels, for example can adopt one to one, form such as one-to-many, many-one or multi-to-multi.As shown in Figure 2, in the present embodiment, each eccentric lenticular caliber size is consistent with the beam size size that image display device 20 each pixel are sent, each eccentric lenticule center and each pixel center position consistency, be that each eccentric lenticule of image amplifying device 30 and each pixel of display device 20 are one to one, the light beam that each pixel is sent enters corresponding with it eccentric lenticule.The image light that send display device 20 viewing areas 21 through the effect after the amplification of image amplifying device 30 as shown in Figure 2, the image light that sends of the viewing area 21 of display device 20 can cover the frame region 22 to display device 20 after image amplifying device 30 amplifies as can be seen.If two tiled display unit are spliced, can obtain seamless spliced effect as shown in Figure 3.
As shown in Figure 1 and Figure 4, this collimated back 10 comprises reflector plate 50, light-emitting area 60, collimation layer 70 and the correcting layer 80 that sets gradually from bottom to top, this correcting layer 80 places display device 20 belows and aims at its viewing area 21, this collimation layer 70 is by the formed micro collimating lens array of micro collimating lens 71 periodic arrangement, this correcting layer 80 is periodically closely to arrange formed microprism array by microprism 81, and each micro collimating lens 71 of collimation layer 70 is aimed at each microprism 81 of correcting layer 80 respectively.
As shown in Figure 5, each micro collimating lens 71 comprises light beam convergent part 711 and beam collimation portion 712 disposed thereon.The one side that the bottom surface 713(of this light beam convergent part 711 is promptly relative with light-emitting area 60) be provided with aperture 714, aperture 714 bores are compared and can be ignored with micro collimating lens 71 bores.In order to guarantee the output brightness of last display screen, bore and the light convergent part relative aperture of getting aperture 714 are that 1:10 is good.In order to reduce light loss, this bottom surface 713 part beyond aperture 714 is coated with reflectance coating.This beam collimation portion 712 comprises standard lens 715 and around one or more layers inclination relay lens 716 of this standard lens 715, this standard lens 715 is positioned at the center of beam collimation portion 712, the aperture 714 of this light beam convergent part 711 of its centrally aligned.
Each microprism 81 comprises the planar section 811 aimed at the standard lens 715 of this micro collimating lens 71 and prism rotating part 812 corresponding with each layer inclination relay lens 716 of this micro collimating lens 71 and that aim at, and this prism rotating part 812 is used for the light with inclination relay lens 716 outgoing of this micro collimating lens 71 is roughly deflected to the axis direction of this aperture 714.If this micro collimating lens 71 has multilayer inclination relay lens 716, then the prism rotating part 812 of microprism 81 will have a plurality of parts corresponding with each layer inclination relay lens 716.The standard lens 715 of micro collimating lens 71 and inclination relay lens 716 are its focal length of lens with the distance of aperture 714.
In addition, reduce capacity usage ratio for fear of light in micro collimating lens 71 inner generation total reflections, the angle between the outer rim of micro collimating lens 71 outermost inclination relay lens 716 and aperture 714 outers between line and light beam convergent part 711 normals is less than the critical angle of collimation layer 70 material that adopts.
The principle of work of present embodiment is as follows:
As Fig. 6, shown in Figure 7, light-emitting area 60 is a lambert dignity light source, be placed on reflector plate 50 tops, some enters collimation layer 70 by aperture 714 light that light-emitting area 60 is sent, the reflection and finally enter aperture 714 between the reflectance coating of collimation layer 70 bottom surface 713 and reflector plate 50 of a part of in addition light.
Last whole lambert's body light-emitting area 60 becomes the collimated light outgoing through after this collimator apparatus.Because it is all collimated to enter the light of aperture 714, the capacity usage ratio height satisfies the requirement of subsequent optical system for high brightness, high alignment light emitting face 60 fully.
Image amplifying device 30 is stacked on the display device 20, and each pixel of each eccentric lenticule and display device 20 is strict aims at.Each pixel light beam can only enter corresponding eccentric lenticule, because each eccentric lenticule all has certain offset, all there has been certain displacement the position that the light shafts of the eccentric microlens array of process project on the screen 40.Wherein, the pixel at display device 20 edges is projected onto the marginal position of screen 40, and covers the frame region 22 of display device 20.In addition, be the light beam of 6 degree for the diffusion half-angle, by being close to the eccentric microlens array on the image display panel, can guarantee that adjacent two light shafts do not overlap mutually on screen 40, guarantee the sharpness of screen 40 epigraphs.
The visual angle, tiled display unit of present embodiment is big, does not lose resolution, and the color saturation height has farthest been kept the characteristics of image of display screen.A plurality of tiled displays unit is spliced, can obtain seamless spliced large screen display device.
Claims (7)
1. tiled display unit, it is characterized in that, comprise the collimated back, display device, image amplifying device and the screen that set gradually, this display device comprises the viewing area and is positioned at this viewing area frame region on every side that this image amplifying device is the corresponding eccentric microlens array that also image of this viewing area can be amplified to frame region with the viewing area of display device.
2. tiled display according to claim 1 unit is characterized in that: the one or more eccentric lenticule of described eccentric microlens array is corresponding with one or more pixels of the viewing area of this display device and caliber size is consistent.
3. tiled display according to claim 1 and 2 unit is characterized in that: the eccentric lenticular offset in the described eccentric microarray from array center to around increase gradually.
4. tiled display according to claim 1 unit is characterized in that:
Described collimated back comprises reflector plate, light-emitting area, collimation layer and the correcting layer that sets gradually, this correcting layer places described display device below and aims at its viewing area, this collimation layer is the micro collimating lens array, this correcting layer is a microprism array, and each micro collimating lens of collimation layer is aimed at each microprism of correcting layer respectively;
Each micro collimating lens comprises light beam convergent part and beam collimation portion disposed thereon, the bottom surface of this light beam convergent part is provided with aperture, this beam collimation portion comprises standard lens and around one or more layers inclination relay lens of this standard lens, the aperture of this light beam convergent part of the centrally aligned of this standard lens;
Each microprism comprises the planar section aimed at the standard lens of this micro collimating lens and prism rotating part corresponding with each layer inclination relay lens of this micro collimating lens and that aim at, and this prism rotating part is used for the light with the inclination relay lens outgoing of this micro collimating lens is roughly deflected to the axis direction of this aperture.
5. tiled display according to claim 4 unit is characterized in that: the standard lens of described micro collimating lens and the distance of described aperture are its focal length of lens, and the inclination relay lens of described micro collimating lens and the distance of described aperture are its focal length of lens.
6. according to claim 4 or 5 described tiled display unit, it is characterized in that: the bottom surface of described light beam convergent part part beyond aperture is provided with reflectance coating.
7. a large screen display device comprises some tiled displays unit, it is characterized in that: described tiled display unit is the arbitrary described tiled display of claim 1 to 7 unit.
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CN102346326A (en) * | 2011-09-20 | 2012-02-08 | 广东威创视讯科技股份有限公司 | LCD (liquid crystal display) seamless splicing system |
CN102646407A (en) * | 2012-05-14 | 2012-08-22 | 广东威创视讯科技股份有限公司 | Seamless splicing display method and device |
CN102830533A (en) * | 2012-08-23 | 2012-12-19 | 京东方科技集团股份有限公司 | Display panel and display device |
CN103137026A (en) * | 2011-11-29 | 2013-06-05 | 联想(北京)有限公司 | Electronic equipment and imaging method thereof |
CN103325310A (en) * | 2012-03-22 | 2013-09-25 | 曹嘉灿 | Blanking frame display device |
CN103473997A (en) * | 2013-09-13 | 2013-12-25 | 北京京东方光电科技有限公司 | Display panel, manufacturing method thereof and terminal equipment |
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WO2015027580A1 (en) * | 2013-08-30 | 2015-03-05 | 京东方科技集团股份有限公司 | Display screen, joined display screen, and display device |
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CN107038963A (en) * | 2017-06-16 | 2017-08-11 | 济南维康安防电子有限公司 | It is a kind of to remove method and structure that multi-screen splices black seam |
CN108266666A (en) * | 2018-01-16 | 2018-07-10 | 京东方科技集团股份有限公司 | Collimated back structure and its display device, double screen and multi-display apparatus |
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CN111312085A (en) * | 2020-03-05 | 2020-06-19 | 深圳市隆利科技股份有限公司 | Splicing display and display equipment |
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Cited By (25)
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CN102346326A (en) * | 2011-09-20 | 2012-02-08 | 广东威创视讯科技股份有限公司 | LCD (liquid crystal display) seamless splicing system |
CN103137026A (en) * | 2011-11-29 | 2013-06-05 | 联想(北京)有限公司 | Electronic equipment and imaging method thereof |
CN103325310A (en) * | 2012-03-22 | 2013-09-25 | 曹嘉灿 | Blanking frame display device |
CN103325310B (en) * | 2012-03-22 | 2017-07-11 | 曹嘉灿 | Blanking frame display device |
CN102646407A (en) * | 2012-05-14 | 2012-08-22 | 广东威创视讯科技股份有限公司 | Seamless splicing display method and device |
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WO2015027580A1 (en) * | 2013-08-30 | 2015-03-05 | 京东方科技集团股份有限公司 | Display screen, joined display screen, and display device |
WO2015035782A1 (en) * | 2013-09-13 | 2015-03-19 | 京东方科技集团股份有限公司 | Display panel, manufacturing method therefor, and terminal device |
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CN104123885A (en) * | 2014-07-15 | 2014-10-29 | 青岛海信电器股份有限公司 | Seamless splicing display device |
CN104464536A (en) * | 2014-12-11 | 2015-03-25 | 广东威创视讯科技股份有限公司 | Display device |
CN104950504A (en) * | 2015-07-28 | 2015-09-30 | 深圳市华星光电技术有限公司 | Display device and electronic equipment |
WO2017015978A1 (en) * | 2015-07-28 | 2017-02-02 | 深圳市华星光电技术有限公司 | Display apparatus and electronic device |
CN104950504B (en) * | 2015-07-28 | 2018-01-09 | 深圳市华星光电技术有限公司 | Display device and electronic equipment |
US10409098B2 (en) | 2015-07-28 | 2019-09-10 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display apparatus and electrical device |
CN107038963A (en) * | 2017-06-16 | 2017-08-11 | 济南维康安防电子有限公司 | It is a kind of to remove method and structure that multi-screen splices black seam |
CN108266666A (en) * | 2018-01-16 | 2018-07-10 | 京东方科技集团股份有限公司 | Collimated back structure and its display device, double screen and multi-display apparatus |
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CN109407461A (en) * | 2018-10-26 | 2019-03-01 | 京东方科技集团股份有限公司 | The method of photomask and preparation method thereof and production display device |
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