CN101447151B - LCD splicing display device - Google Patents
LCD splicing display device Download PDFInfo
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- CN101447151B CN101447151B CN2008102201160A CN200810220116A CN101447151B CN 101447151 B CN101447151 B CN 101447151B CN 2008102201160 A CN2008102201160 A CN 2008102201160A CN 200810220116 A CN200810220116 A CN 200810220116A CN 101447151 B CN101447151 B CN 101447151B
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Abstract
The invention provides an LCD splicing display device and a large screen splicing display system thereof. The device consists of a spot light source, LCD panels and a rear projection screen which are arranged along a light path sequentially. Each LCD panel displays one or a plurality of discrete pictures, any two adjacent pictures are spaced; each picture corresponds to one spot light source which is disposed on the vertical center line of the picture; and the spot light source projects the display picture of the LCDs to the rear projection screen for display. The device and the system can effectively eliminate a splicing seam of the panel frame while splicing the LCD panels, and the device has simple structure and can be easily realized.
Description
Technical field
The present invention relates to LCD display technique field, particularly a kind of LCD splicing display device and large-screen splicing display system thereof.
Background technology
In recent years, many advantages such as along with developing rapidly of large-scale LCD panel, LCD display is ultra-thin, in light weight, radiationless with it, stable performance become the main flow of display technique gradually, also just progressively replace the main flow that CRT becomes display.Though the LCD of oversize can accomplish 80 cun even 100 cun, needing the occasion of large screen display (as Control Room etc.) still can not satisfy user's requirement, so the LCD spliced display wall arise at the historic moment, show up prominently in the large screen display field gradually.
The LCD panel since around the demand of driving circuit and production technology, around display image, need to keep certain space, image can not be shown to the fringe region of panel, width that generally should the zone surpasses 10mm, and increase along with the increase of panel size, therefore, when carrying out tiled display, form bigger splicing seams easily, the width of general this splicing seams surpasses 20mm, so causing display frame is cut apart, continuity and integrality that this has just destroyed display image make picture lose whole visual effect.Some LCD panel vendors are making great efforts to reduce the border width of panel, DID LCD panel as Samsung's exploitation, this border width has been dropped to 6～7mm (corresponding 46 cun display screens), but add fixed frame, still have the width of nearly 8～10mm, nearly 20 millimeters of piece during splicing, this has been the higher level of industry.Minimizing even thorough removal of images splicing seams are the directions of large-screen splicing technical research as far as possible.Application number is that 00225268.6 Chinese utility model patent " light transmitting fiber amplification display screen " has proposed the notion that optical fiber amplifies display screen, adopt the different optical fiber arrangements of two ends thickness together, image is carried out geometry to be amplified, but it is because the individual compartmentation of large tracts of land optical fiber arrangements technology and optical fiber causes display frame picture quality severe exacerbation easily.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of LCD splicing display device and large-screen splicing display system thereof are provided, this device and splice displaying system thereof can effectively be eliminated the splicing seams that the frame of LCD panel and when splicing thereof produce, and guarantee the continuity and the integrality of projection picture better.
The present invention is achieved through the following technical solutions: a kind of LCD splicing display device, set gradually according to light path by pointolite, LCD panel and rear projection screen and to constitute, wherein pointolite is positioned on the vertical center line of LCD panel picture displayed, described rear projection screen places LCD panel the place ahead (the opposing party relative with light source), and picture displayed is the projection picture of picture through obtaining after the pointolite projection on the LCD panel on the rear projection screen.
In order to improve the display effect on the rear projection screen,, be provided with between described LCD panel and the rear projection screen and make beam collimation incide collimation lens on the rear projection screen according to optical path direction.
Described collimation lens is the optical element that Fresnel Lenses, holographic lens or microlens array elements etc. can make beam collimation.
The present invention also is achieved through the following technical solutions, a kind of LCD splicing display device, set gradually according to light path by pointolite, LCD panel and rear projection screen and to constitute, wherein showing on the LCD panel has picture interval between any two adjacent discrete pictures by a plurality of discrete pictures; A pointolite is set on the vertical center line of each discrete picture; Described rear projection screen places LCD panel the place ahead (the opposing party relative with light source), picture displayed is the projection picture of picture through obtaining after the pointolite projection on the LCD panel on the rear projection screen, and the projection picture of any two adjacent discrete pictures on described rear projection screen overlaps on the LCD panel.
The width of picture interval is more than or equal to the width of the LCD panel border of twice on the described LCD panel.
In order to improve the display effect on the rear projection screen, between described LCD panel and the rear projection screen a plurality of collimation lenses are set, described a plurality of collimation lenses are corresponding one by one with discrete picture on the LCD panel.
Described collimation lens is the optical element that Fresnel Lenses, holographic lens or microlens array elements etc. can make beam collimation.
The above rear projection screen is the scattering screen that has scattering layer, or scattering film, or has the optical back projection screen of microcosmic optical texture.
The LCD splicing display device of the above two kinds of structures of the present invention, its principle of work is: the beam divergence that pointolite sends shines on the picture of LCD panel, according to the rectilinear propagation principle of light, the light beam that pointolite sends will project picture on the rear projection screen through the LCD panel.Because the light beam that pointolite sends is dispersed, light beam is modulated into a lot of tiny rgb light bundles by the LCD panel pixels after by the LCD panel, they project on the rear projection screen after propagating certain distance, on rear projection screen, project the display image of amplification, this display image can cover the frame of LCD panel fully, influences, can realize seamless spliced display device thereby form an elimination frame.
In order to prevent the interference of parasitic light, can between pointolite and LCD panel, diaphragm be set, to improve the contrast and the sharpness of picture.
The present invention also provides a kind of LCD large-screen splicing display system, and this system is spliced by above-mentioned LCD splicing display device, and the projection picture of any two adjacent LCD splicing display devices on rear projection screen overlaps, and forms seamless spliced display system.
LCD splicing display device on the above-mentioned LCD large-screen splicing display system independently uses a rear projection screen separately, or the shared rear projection screen of a plurality of LCD splicing display device.
The principle of work of above-mentioned LCD large-screen splicing display system is identical with the principle of work of single LCD splicing display device.
Compared with prior art, the present invention has following beneficial effect: LCD splicing display device of the present invention and large-screen splicing display system thereof have effectively been eliminated the panel border when the LCD panel shows, can be spliced into real seamless large-screen splicing display system, and its principle of device is simple, is easy to realize.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 single LCD panel.
Fig. 2 is the principle schematic of embodiment 1LCD splicing display device.
Fig. 3 is the principle schematic of the LCD splicing display device of embodiment 1 band collimation lens.
Fig. 4 is the synoptic diagram of projection picture on the rear projection screen of embodiment 1LCD splicing display device.
Fig. 5 is the structural representation of embodiment 2 single LCD panels.
Fig. 6 is the principle schematic of embodiment 2LCD splicing display device.
Fig. 7 is the principle schematic of the LCD splicing display device of embodiment 2 band collimation lenses.
Fig. 8 is the synoptic diagram of projection picture on the rear projection screen of embodiment 2LCD splicing display device.
Fig. 9 is an embodiment 3LCD large-screen splicing display system principle schematic, and LCD splicing display device wherein is the LCD splicing display device of embodiment 1.
Figure 10 is an embodiment 3LCD large-screen splicing display system principle schematic, and LCD splicing display device wherein is the LCD splicing display device of embodiment 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
A kind of LCD splicing display device of present embodiment, as shown in Figure 1, around the LCD panel 2 panel border 2-1, center section being arranged is picture 2-2.The structure of LCD splicing display device is set gradually according to light path by pointolite 1, LCD panel 2 and rear projection screen 3 and to constitute as shown in Figure 2, wherein has panel border 2-1 around the LCD panel 2, and center section is picture 2-2; Pointolite 1 places on the vertical center line of picture 2-2; Wherein the projection picture 3-1 on the rear projection screen 3 is the projection picture that picture 2-2 obtains after throwing through pointolite on the LCD panel.
As shown in Figure 3, in order to improve the display effect on the rear projection screen 3, can be provided with between described LCD panel 2 and the rear projection screen 3 and make light beam 4 collimation incide collimation lens 5 on the rear projection screen 3.
Described collimation lens 5 is optical elements that Fresnel Lenses, holographic lens or microlens array elements etc. can make beam collimation.
A kind of LCD splicing display device of present embodiment, its principle of work is: adjust rear projection screen 3, LCD panel 2, the relative position of pointolite 1, rectilinear propagation principle according to light, the light beam 4 that pointolite 1 sends sees through LCD panel 2 backs and is become a lot of tiny rgb light bundles by the pixel modulation of LCD panel 2, these light beams propagate into rear projection screen 3 forward, thereby the image projection of picture 2-2 to rear projection screen 3, because the light beam 4 that pointolite 1 sends is dispersed, light beam 4 sees through the projection picture 3-1 that projects on the rear projection screen 3 behind the LCD panel 2 propagation certain distances and amplifies to some extent than the display frame 2-2 on the former LCD panel 2, make the physical dimension of the size of projection picture 3-1 more than or equal to the panel border 2-1 of LCD panel 2, thereby form one and eliminate the frame influence, can realize seamless spliced LCD splicing display device.Projection picture 3-1 as shown in Figure 4.
A kind of LCD splicing display device of present embodiment, as shown in Figure 5, around the LCD panel 2 panel border 2-1, center section being arranged is a plurality of discrete picture 2-2, between any two adjacent pictures 2-2 picture interval 2-3 is arranged.The structure of LCD splicing display device is set gradually according to light path by pointolite 1, LCD panel 2 and rear projection screen 3 and to constitute as shown in Figure 6, wherein has panel border 2-1 around the LCD panel 2, and center section is a plurality of discrete picture 2-2; Place a pointolite 1 on the vertical center line of each discrete picture 2-2; Wherein the projection picture 3-1 on the rear projection screen 3 is the projection picture that picture 2-2 obtains after throwing through pointolite on the LCD panel.
The width of described picture interval 2-3 is more than or equal to the width of the LCD panel border 2-1 of twice.
As shown in Figure 7, in order to improve the display effect on the rear projection screen 3, can be provided with between described LCD panel 1 and the rear projection screen 3 and make light beam 4 collimation incide a plurality of collimation lenses 5 on the rear projection screen 3, picture 2-2 discrete on its collimation lens 5 and the LCD panel 2 is corresponding one by one.
Described collimation lens 5 is optical elements that Fresnel Lenses, holographic lens or microlens array elements etc. can make beam collimation.
A kind of LCD splicing display device of present embodiment, its principle of work is similar to Example 1, any two adjacent projections picture 3-1 overlap on rear projection screen, form the projection picture of a width of cloth integral body, and make the physical dimension of the size of this whole projection picture more than or equal to the panel border 2-1 of LCD panel 2.The integral body projection picture that projection picture 3-1 forms as shown in Figure 8.
A kind of LCD large-screen splicing of present embodiment display system, this system is spliced by the LCD splicing display device of the above embodiments 1 or embodiment 2, respectively as Fig. 9 and shown in Figure 10, the projection picture 3-1 of any two adjacent LCD splicing display devices on rear projection screen 3 overlaps, the big projection picture of forming a width of cloth integral body, the splicing of having blocked LCD splicing generation fully meets 6, thereby forms seamless spliced display system.
LCD splicing display device on the above-mentioned LCD large-screen splicing display system independently uses a rear projection screen separately, or the shared rear projection screen of a plurality of LCD splicing display device.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (4)
1. a LCD splicing display device is characterized in that, it is set gradually according to light path by pointolite, LCD panel and rear projection screen and constitutes, and wherein showing on the LCD panel has picture interval between any two adjacent discrete pictures by a plurality of discrete pictures; A pointolite is set on the vertical center line of each discrete picture; Described rear projection screen places LCD panel the place ahead, picture displayed is the projection picture of picture through obtaining after the pointolite projection on the LCD panel on the rear projection screen, and the projection picture of any two adjacent discrete pictures on described rear projection screen overlaps on the LCD panel.
2. LCD splicing display device according to claim 1 is characterized in that, the width of picture interval is more than or equal to the width of the LCD panel border of twice on the described LCD panel.
3. LCD splicing display device, it is characterized in that, it is set gradually according to light path by pointolite, LCD panel, a plurality of collimation lens and rear projection screen and constitutes, and wherein showing on the LCD panel has picture interval between any two adjacent discrete pictures by a plurality of discrete pictures; A pointolite is set on the vertical center line of each discrete picture; Described rear projection screen places LCD panel the place ahead, picture displayed is the projection picture of picture through obtaining after the pointolite projection on the LCD panel on the rear projection screen, and the projection picture of any two adjacent discrete pictures on described rear projection screen overlaps on the LCD panel; Between described LCD panel and the rear projection screen a plurality of collimation lenses are set, its collimation lens is corresponding one by one with discrete picture on the LCD panel.
4. LCD splicing display device according to claim 3 is characterized in that, described collimation lens is Fresnel Lenses, holographic lens or microlens array elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102201160A CN101447151B (en) | 2008-12-18 | 2008-12-18 | LCD splicing display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102201160A CN101447151B (en) | 2008-12-18 | 2008-12-18 | LCD splicing display device |
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| Publication Number | Publication Date |
|---|---|
| CN101447151A CN101447151A (en) | 2009-06-03 |
| CN101447151B true CN101447151B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102201160A Expired - Fee Related CN101447151B (en) | 2008-12-18 | 2008-12-18 | LCD splicing display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402901A (en) * | 2011-12-21 | 2012-04-04 | 广东威创视讯科技股份有限公司 | Device for optimizing display effect of spliced screen |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8258685B2 (en) * | 2009-06-26 | 2012-09-04 | Prysm, Inc. | Multi-panel display screen having a supporting film layer |
| CN113744651A (en) * | 2020-05-27 | 2021-12-03 | 重庆康佳光电技术研究院有限公司 | Spliced display panel and display device |
| CN111654742B (en) * | 2020-06-18 | 2022-06-28 | 中电长城(长沙)信息技术有限公司 | Remote intelligent linkage screen projection method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128054A (en) * | 1996-09-06 | 2000-10-03 | Central Research Laboratories Limited | Apparatus for displaying an image |
| CN101075079A (en) * | 2006-05-19 | 2007-11-21 | 巨豪实业股份有限公司 | Projector with laser light source |
-
2008
- 2008-12-18 CN CN2008102201160A patent/CN101447151B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128054A (en) * | 1996-09-06 | 2000-10-03 | Central Research Laboratories Limited | Apparatus for displaying an image |
| CN101075079A (en) * | 2006-05-19 | 2007-11-21 | 巨豪实业股份有限公司 | Projector with laser light source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402901A (en) * | 2011-12-21 | 2012-04-04 | 广东威创视讯科技股份有限公司 | Device for optimizing display effect of spliced screen |
| CN102402901B (en) * | 2011-12-21 | 2014-04-23 | 广东威创视讯科技股份有限公司 | Device for optimizing display effect of spliced screen |
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| Publication number | Publication date |
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| CN101447151A (en) | 2009-06-03 |
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Address after: 510670 Guangdong Province, Guangzhou high tech Industrial Development Zone Kezhu Road No. 233 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510663 No. 6, color road, hi tech Industrial Development Zone, Guangdong, Guangzhou, China Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20181218 |