CN203644317U - Display device without frame and large-screen splicing display system without splicing seams - Google Patents
Display device without frame and large-screen splicing display system without splicing seams Download PDFInfo
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- CN203644317U CN203644317U CN201320891177.6U CN201320891177U CN203644317U CN 203644317 U CN203644317 U CN 203644317U CN 201320891177 U CN201320891177 U CN 201320891177U CN 203644317 U CN203644317 U CN 203644317U
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Abstract
The utility model discloses a display device without a frame and a large-screen splicing display system without splicing seams, and relates to the technical field of large-screen splicing display. The display device without the frame comprises a display screen with a frame, and the display area of the display screen comprises a central area and an edge area between the central area and the frame. An optical transparent flat plate covers the front watching face of the central area, and an eccentric linear Fresnel lens covers the front watching face of the edge area. The Fresnel center line of the eccentric linear Fresnel lens is close to one side of the central area. Due to the fact that the Fresnel lens used for amplifying the edge area is arranged in front of the edge area of the display screen with the frame, the amplified edge area is larger than or equal to the frame so as to completely cover the frame, and the frame of the display device is visually eliminated.
Description
Technical field
The utility model relates to large-screen splicing display technique field, more particularly, relates to the large-screen splicing display system of a kind of frame-free displaying device and elimination piece.
Background technology
Large screen display demand is increasing, because conventional display part is size-constrained and the lower application conditions harshness of movie theatre large screen projection brightness, and undersized conventional display is stitched together, show it has been a kind of conventional large screen display mode to realize jumbotron, and be widely used in various occasions, as various commanders, dispatching center, large-scale Control Rooms such as traffic surveillance and control center, power scheduling, subway scheduling.
Large-screen splicing shows several schemes, comprise liquid crystal, plasma, OLED(Organic Light-Emitting Diode, Organic Light Emitting Diode) etc. the splicing of flat-panel monitor, LED splicing, DLP(Digital Light Procession is digital light processing) rear-projection splicing.But rate variance is differentiated in LED splicing, in the time of indoor application, image is too coarse.Although DLP rear-projection splicing image exquisiteness almost can accomplish not have piece, its thickness is very thick, needs huge installing space, and system price costliness, only has high-end applications occasion to use.The flat-panel monitor tiled display image exquisitenesses such as liquid crystal, plasma, OLED, cost are moderate, and thin thickness, installing space are little; But be limited to production process, its edge always stay certain can not viewing area, thereby when polylith flat-panel monitor tiled display, as shown in Figure 1 and Figure 2, inevitably there is the existence of not displayable frame 102 in display screen 101 edges, in the time being spliced into giant-screen, unavoidably can form not displayable piece, cause picture segmentation, destroy the continuously level and smooth and integrality of image, have a strong impact on the whole structure of tiled display picture, cannot realize high-quality seamless tiled display.
In prior art, generally amplify picture with optical lens, if desired carry out large-screen splicing, need bigbore optical lens to amplify.But thickness and the weight of large-aperture optical lens are larger, be not only difficult to processing and install, and cost is very high, be unsuitable for large-screen splicing and show.
Utility model content
The technical problems to be solved in the utility model is, the large-screen splicing display system of a kind of improved frame-free displaying device and elimination piece is provided.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of frame-free displaying device, comprise the display screen with frame, the viewing area of described display screen comprises central area and the fringe region between described central area and frame; Described central area is the square optical clear flat board that is coated with in face of watching, and described fringe region watches side to be in front coated with eccentric linear Fresnel lens; The Fresnel center line of described eccentric linear Fresnel lens is near described central area one side.
Preferably, in above-mentioned frame-free displaying device, the angle between the Fresnel center line of described eccentric linear Fresnel lens and the fringe region of its covering and the boundary line of frame is less than 10 degree; Spacing between described optical clear flat board and the boundary line of described eccentric linear Fresnel lens and the Fresnel center line of described eccentric linear Fresnel lens is less than 30mm; The width of described eccentric linear Fresnel lens is greater than the width of described frame and is less than 1/2 of described display screen width.
Preferably, in above-mentioned frame-free displaying device, described eccentric linear Fresnel lens comprises the eccentric linear Fresnel lens of level that covers horizontal edge viewing area, and covers the vertical eccentric linear Fresnel lens of viewing area, vertical edge.
Preferably, in above-mentioned frame-free displaying device, the eccentric linear Fresnel lens of described level and described vertical eccentric linear Fresnel lens intersection are also provided with eccentric point and focus on Fresnel Lenses.
Preferably, in above-mentioned frame-free displaying device, described eccentric point focuses on Fresnel Lenses and joins respectively with the eccentric linear Fresnel lens of described level and described vertical eccentric linear Fresnel lens; The Fresnel central point of described eccentric point focusing Fresnel Lenses is near one jiao of described central area; The spacing that described eccentric point focuses between Fresnel central point and described level bias linear Fresnel lens and the intersection point of described vertical eccentric linear Fresnel lens Fresnel center line crossing with it of Fresnel Lenses is less than 30mm.
Preferably, in above-mentioned frame-free displaying device, described eccentric point focuses on the boundary line of Fresnel Lenses and the eccentric linear Fresnel lens of described level, is 60～120 to spend with the angle of the center line of the eccentric linear Fresnel lens of this level; Described eccentric point focuses on the boundary line of Fresnel Lenses and described vertical eccentric linear Fresnel lens, is 60～120 to spend with the angle of the center line of this vertical eccentric linear Fresnel lens.
Preferably, in above-mentioned frame-free displaying device, the pitch that described eccentric point focuses on Fresnel Lenses and described eccentric linear Fresnel lens is all less than 0.35mm.
Preferably, in above-mentioned frame-free displaying device, described eccentric point focuses on the focal length of Fresnel Lenses and the focal length ratio of described eccentric linear Fresnel lens is 0.6～1.4.
Preferably, in above-mentioned frame-free displaying device, described display screen comprises liquid crystal display or OLED display or plasma display or rear-projection display device or cathode-ray tube display.
The utility model has also been constructed a kind of large-screen splicing display system of eliminating piece, comprise signal source, receive the signal of described signal source the signal processing unit of processing, the frame-free displaying device of some mutual splicings, described frame-free displaying device is connected in described signal processing unit; Described signal source sends a signal to described signal processing unit, and by described signal processing unit, signal access is shown in each described frame-free displaying device mutually splicing, to form the large-screen splicing display system of seamless.
The beneficial effects of the utility model are: because frame-free displaying device of the present utility model is provided for amplifying the Fresnel Lenses of fringe region by the fringe region front of the display screen with frame, fringe region after amplification is more than or equal to frame and frame is covered completely, has visually eliminated the frame of display device.Meanwhile, in the time utilizing frame-free displaying device to be spliced into large screen display, also can visually eliminate the piece between display device, realize seamless large-screen splicing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the spliced large screen display device structural representation of display screen with frame in prior art;
Fig. 2 is the side view of Fig. 1.
Fig. 3 a is frame-free displaying device viewing area partition structure schematic diagram in the utility model preferred embodiment,
Fig. 3 b is the structural representation of frame-free displaying device in the utility model preferred embodiment,
Fig. 3 c is the side view of Fig. 3 b;
Fig. 4 a is the structural representation of linear Fresnel lens,
Fig. 4 b is eccentric linear Fresnel lens structure schematic diagram;
Fig. 5 a is the structural representation of point focusing Fresnel Lenses,
Fig. 5 b is that eccentric point focuses on Fresnel lens structure schematic diagram;
Fig. 6 a is the one dimension splicing construction schematic diagram of frame-free displaying device in the utility model preferred embodiment,
Fig. 6 b is the side view of Fig. 6 a;
Fig. 7 a is the frame-free displaying device viewing area partition structure schematic diagram for two dimension splicing in the utility model preferred embodiment;
Fig. 7 b is the structural representation for the frame-free displaying device of two dimension splicing in the utility model preferred embodiment;
Fig. 8 is the structural representation that splices and increased the frame-free displaying device of eccentric point focusing Fresnel Lenses in the utility model preferred embodiment for two dimension;
Fig. 9 a is the large-screen splicing display system architectures schematic diagram of eliminating piece in the utility model preferred embodiment,
Fig. 9 b is the side view of Fig. 9 a;
Figure 10 is the large-screen splicing display system principle schematic of eliminating piece in the utility model preferred embodiment.
Embodiment
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
Fig. 3 a, Fig. 3 b, Fig. 3 c show the frame-free displaying device in preferred embodiment of the utility model, this frame-free displaying device comprises the display screen 1 with frame 2, and the viewing area of display screen 1 comprises central area 12 and the fringe region 11 between central area 12 and frame 2.Central area 12 watched by central display area in face of the optical clear flat board 3 that covers of side be projected in gained on the viewing area of display screen 1, fringe region 11 watched by viewing area, edge in face of the eccentric linear Fresnel lens 4 that covers of side be projected in gained on the viewing area of display screen 1; The Fresnel center line 43 of eccentric linear Fresnel lens 4 is near central area 12 1 sides.
In optical lens, Fresnel optical element has optical amplifier ability, and thickness is less, weight is lighter, easy to process, and cost is very low; Utilize the plastic material of high printing opacity can obtain Fresnel Lenses through mold pressing, not only can realize rapid batch and produce, and material cost is very low, has now been widely used in the industries such as rear-projection Projection Display, light fixture, Salar light-gathering.Fresnel Lenses, according to the shape difference of its focal spot, can be divided into utilizing line-focus Fresnel lens and point focusing Fresnel Lenses.Line focus Fresnel is also referred to as linear Fresnel lens, as shown in Fig. 4 a, linear Fresnel lens focused ray forms straight line, be called Fresnel center line 43 by this focusing straight line and perpendicular to the plane of linear Fresnel lens and the intersection of linear Fresnel, linear Fresnel lens front is blind shaped, section indentation, and sawtooth angle constantly changes.The focused ray of point focusing Fresnel Lenses is a point, and as shown in Figure 5 a, point focusing Fresnel Lenses is made up of multiple concentric circless, and the concentrically ringed center of circle is Fresnel central point 51.When the Fresnel center of Fresnel Lenses does not overlap with Fresnel Lenses geometric centre axes or central axis plane, be called eccentric Fresnel Lenses, as shown in Fig. 4 b, Fig. 5 b.
Use eccentric linear Fresnel lens 4, the display screen 1 of fringe region 11 parts that only covered amplifies, and fringe region 11 is amplification region, 12Wei Wei amplification region, central area.The Fresnel center line 43 of eccentric linear Fresnel lens 4 is near central area 12 1 sides, and overlap with optical clear dull and stereotyped 3 and eccentric linear Fresnel lens 4 boundary lines, the local picture that amplifies fringe region 11 of eccentric linear Fresnel lens 4 has covered not displayable frame 2, has realized Rimless demonstration; Meanwhile, use above device can avoid the picture of the non-amplification region of display frame Quality Down and amplification region, edge and center intersection to isolate, can accomplish the splicing of the single dimension of 1*N, as shown in Fig. 6 a, Fig. 6 b.Central area 12 is without the optical clear flat board 3 of enlarging function, for showing this display screen 1 central area 12 images without transmission enlargedly.
In certain embodiments, eccentric linear Fresnel lens 4 is covered in the side in front watched of viewing area, edge 11 and frame 2.In the time that eccentric linear Fresnel lens 4 does not cover frame 2, watching in front of frame 2 can cover optical clear flat board or glass or acrylic or optical plastic or air flat board, amplify viewing area, edge 11 to coordinate with eccentric linear Fresnel lens 4, from visually eliminating frame 2.
In certain embodiments, be liquid crystal display or plasma display or OLED display or rear-projection display device or cathode-ray tube display with the display screen 1 of frame 2.
Angle between the eccentric Fresnel center line 43 of linear Fresnel lens 4 and the demonstration fringe region 11 of its complete covering and the boundary line 21 of frame 2 is less than 10 degree.Optical clear dull and stereotyped 3 and the boundary line of eccentric linear Fresnel lens 4 and the Fresnel center line 43 of eccentric linear Fresnel lens 4 overlap substantially, and spacing is between the two less than 30mm.The width of eccentric linear Fresnel lens 4 is greater than frame 2 width and is less than 1/2 of display screen 1 width.The center line of eccentric linear Fresnel lens 4 is positioned at the intersection of optical clear dull and stereotyped 3 and eccentric linear Fresnel lens 4, can greatly reduce Fresnel Lenses bore.In specific embodiment, if display screen 1 is of a size of 46 cun: if face covering point focusing Fresnel Lenses carries out entirety amplification in face of display screen 1 is watched, aperture of lens is of a size of 1200mm; And the fringe region 11 of the eccentric linear Fresnel lens local enlargement display screen 1 that use width is 120mm, aperture of lens size is significantly reduced to 240mm, only has 20% of point focusing Fresnel bore.
In certain embodiments, as shown in Fig. 7 a, Fig. 7 b, eccentric linear Fresnel lens 4 comprises the eccentric linear Fresnel lens 41 of the level in the horizontal frame of covering and horizontal edge region, and covers the vertical eccentric linear Fresnel lens 42 of vertical frame and vertical fringe region.Cover respectively level and the vertical fringe region of display screen 1 by the eccentric linear Fresnel lens 41 of level and vertical eccentric linear Fresnel lens 42, can eliminate level and the vertical frame of display screen 1 simultaneously, use by splicing again, can eliminate the piece of widely used two dimension splicing.
In certain embodiments, as shown in Figure 8, the eccentric linear Fresnel lens 41 of level is also provided with eccentric point with vertical eccentric linear Fresnel lens 42 intersections and focuses on Fresnel Lenses 5.Eccentric point focuses on Fresnel Lenses 5 and joins respectively with the eccentric linear Fresnel lens 41 of level and vertical eccentric linear Fresnel lens 42; The Fresnel central point 51 of eccentric point focusing Fresnel Lenses 5 is near one jiao of described central area 12.Use eccentric point to focus on the transition and linkage of Fresnel Lenses 5 as horizontal linearity Fresnel Lenses and vertical linearity Fresnel Lenses, amplify corresponding viewing area, corner, the edge image covering, can realize two dimension splicing and eliminate piece, again can elimination of level linear Fresnel lens and the image that produces of vertical linearity Fresnel Lenses intersection isolate and black area, corner phenomenon.
Eccentric point focuses on the width of Fresnel Lenses 5 and follows with the width of the linear Fresnel lens of its boundary basic identically, and deviation is less than 30mm.Spacing between the Fresnel central point 51 of eccentric point focusing Fresnel Lenses 5 and the level bias linear Fresnel lens 41 crossing with it and the intersection point of vertical eccentric linear Fresnel lens 42 both Fresnel center lines 43 is less than 30mm.The Fresnel central point 51 that guarantees eccentric point focusing Fresnel Lenses 5 can be positioned on the Fresnel center line 43 of linear Fresnel lens substantially, and removal of images isolates phenomenon.
Eccentric point focuses on the boundary line of Fresnel Lenses 5 and the eccentric linear Fresnel lens 41 of level, with the angle of the Fresnel center line 43 of the eccentric linear Fresnel lens 41 of this level be 60～120 degree; Eccentric point focuses on the boundary line of Fresnel Lenses 5 and vertical eccentric linear Fresnel lens 42, with the angle of the Fresnel center line 43 of this vertical eccentric linear Fresnel lens 42 be 60～120 degree.
Eccentric point focuses on Fresnel Lenses 5 and is all less than 0.35mm with the pitch of eccentric linear Fresnel lens 4.The pitch of Fresnel Lenses is Fresnel width of fringe, and it is less than 0.35mm can meet good visual effect.In certain embodiments, the pitch of eccentric point focusing Fresnel Lenses 5 is identical with the pitch of eccentric linear Fresnel lens 4.The surface at Fresnel striped place is towards display screen 1 or towards beholder, or there is Fresnel striped on two surfaces of display screen 1.
Eccentric point focuses on the focal length of Fresnel Lenses 5 and the focal length ratio of eccentric linear Fresnel lens 4 is 0.6～1.4.It is basic identical with the focal length of eccentric linear Fresnel lens 4 that eccentric point focuses on Fresnel Lenses 5, and deviation is less than 40%.
The frame-free displaying device that has used eccentric point to focus on Fresnel Lenses 5 had both been realized the effect of eliminating frame, avoid again the image of level, vertical linearity Fresnel intersection to isolate phenomenon, the random two-dimensional giant-screen that can be applicable to M*N disappears in piece splice displaying system, as shown in Fig. 9 a, Fig. 9 b.
The utility model has also been constructed a kind of large-screen splicing display system of eliminating piece, as shown in Fig. 9 a, Fig. 9 b, Figure 10, the frame-free displaying device that comprises signal source, the signal that receives signal source the signal processing unit of processing, some mutual splicings, frame-free displaying device is connected in signal processing unit; Signal source sends a signal to signal processing unit, and by signal processing unit, signal access is shown in each frame-free displaying device mutually splicing, to form the large-screen splicing display system of seamless.
Frame-free displaying device adopts alignment fashion of extrusion to splice, and signal source is shown to signal access in the frame-free displaying device of each splicing by signal processing unit, just can realize the large-screen splicing display system of seamless.Fresnel Lenses and optical clear flat board can obtain a global facility by the dull and stereotyped overall die sinking processing of single optical clear, also can are fitted on optical clear flat board and be obtained by multiple discrete Fresnel Lenses splicing assemblings; Optical clear flat board is the flat boards such as glass or acrylic or optical plastic, or air flat board.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing in spirit of the present utility model and principle, be equal to and replace or improvement etc., all should be included in protection domain of the present utility model.
Claims (10)
1. a frame-free displaying device, comprise the display screen (1) with frame (2), it is characterized in that, the viewing area of described display screen (1) comprises central area (12) and the fringe region (11) between described central area (12) and frame (2); Described central area (12) is the square optical clear flat board (3) that is coated with in face of watching, and described fringe region (11) is the square eccentric linear Fresnel lens (4) that is coated with in face of watching; The Fresnel center line (43) of described eccentric linear Fresnel lens (4) is near described central area (12) one sides.
2. frame-free displaying device according to claim 1, it is characterized in that, the angle between the Fresnel center line (43) of described eccentric linear Fresnel lens (4) and the fringe region (11) of its covering and the boundary line (21) of frame (2) is less than 10 degree; Spacing between the Fresnel center line (43) of the boundary line of described optical clear flat board (3) and described eccentric linear Fresnel lens (4) and described eccentric linear Fresnel lens (4) is less than 30mm; The width of described eccentric linear Fresnel lens (4) is greater than the width of described frame (2) and is less than 1/2 of described display screen (1) width.
3. frame-free displaying device according to claim 1, it is characterized in that, described eccentric linear Fresnel lens (4) comprises the eccentric linear Fresnel lens of level (41) that covers horizontal edge viewing area, and covers the vertical eccentric linear Fresnel lens (42) of viewing area, vertical edge.
4. frame-free displaying device according to claim 3, is characterized in that, the eccentric linear Fresnel lens of described level (41) is also provided with eccentric point with described vertical eccentric linear Fresnel lens (42) intersection and focuses on Fresnel Lenses (5).
5. frame-free displaying device according to claim 4, is characterized in that, described eccentric point focuses on Fresnel Lenses (5) and joins respectively with the eccentric linear Fresnel lens of described level (41) and described vertical eccentric linear Fresnel lens (42); The Fresnel central point (51) of described eccentric point focusing Fresnel Lenses (5) is near one jiao of described central area (12); The spacing that described eccentric point focuses between Fresnel central point (51) and described level bias linear Fresnel lens (41) and the intersection point of both Fresnel center lines (43) of described vertical eccentric linear Fresnel lens (42) crossing with it of Fresnel Lenses (5) is less than 30mm.
6. frame-free displaying device according to claim 4, it is characterized in that, described eccentric point focuses on the boundary line of Fresnel Lenses (5) and the eccentric linear Fresnel lens of described level (41), with the angle of the center line of the eccentric linear Fresnel lens of this level (41) be 60～120 degree; Described eccentric point focuses on the boundary line of Fresnel Lenses (5) and described vertical eccentric linear Fresnel lens (42), with the angle of the center line of this vertical eccentric linear Fresnel lens (42) be 60～120 degree.
7. frame-free displaying device according to claim 4, is characterized in that, described eccentric point focuses on Fresnel Lenses (5) and is all less than 0.35mm with the pitch of described eccentric linear Fresnel lens (4).
8. frame-free displaying device according to claim 4, is characterized in that, described eccentric point focuses on the focal length of Fresnel Lenses (5) and the focal length ratio of described eccentric linear Fresnel lens (4) is 0.6～1.4.
9. according to the frame-free displaying device described in any one in claim 1 to 8, it is characterized in that, described display screen (1) comprises liquid crystal display or OLED display or plasma display or rear-projection display device or cathode-ray tube display.
10. eliminate the large-screen splicing display system of piece for one kind, it is characterized in that, comprise signal source, receive the signal of described signal source the signal processing unit of processing, the frame-free displaying device as claimed in any one of claims 1-9 wherein of some mutual splicings, described frame-free displaying device is connected in described signal processing unit; Described signal source sends a signal to described signal processing unit, and by described signal processing unit, signal access is shown in each described frame-free displaying device mutually splicing, to form the large-screen splicing display system of seamless.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891177.6U CN203644317U (en) | 2013-12-31 | 2013-12-31 | Display device without frame and large-screen splicing display system without splicing seams |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891177.6U CN203644317U (en) | 2013-12-31 | 2013-12-31 | Display device without frame and large-screen splicing display system without splicing seams |
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| CN203644317U true CN203644317U (en) | 2014-06-11 |
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| CN201320891177.6U Withdrawn - After Issue CN203644317U (en) | 2013-12-31 | 2013-12-31 | Display device without frame and large-screen splicing display system without splicing seams |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700323A (en) * | 2013-12-31 | 2014-04-02 | 深圳市澳柯瑞科技有限公司 | Frame-free display device and joint-free large-screen splicing display system |
| WO2016023283A1 (en) * | 2014-08-14 | 2016-02-18 | 深圳市华星光电技术有限公司 | Bezel-less display |
| US10012857B2 (en) | 2015-11-06 | 2018-07-03 | Champ Vision Display Inc. | Display apparatus including a prism module |
| US10067369B2 (en) | 2015-11-06 | 2018-09-04 | Champ Vision Display Inc. | Display apparatus with a prism module including a corner prism set disposed on a corner region |
| US10504451B2 (en) | 2016-08-08 | 2019-12-10 | Champ Vision Display Inc. | Display apparatus with multi screens and display signal control method thereof |
| US10809959B2 (en) | 2017-10-25 | 2020-10-20 | Champ Vision Display Inc. | Multi-screen display device |
| US10929086B2 (en) | 2018-02-22 | 2021-02-23 | Champ Vision Display Inc. | Multi-screen display apparatus and display method thereof |
| US11382219B2 (en) | 2018-06-06 | 2022-07-05 | Champ Vision Display Inc. | Multi-screen display apparatus |
-
2013
- 2013-12-31 CN CN201320891177.6U patent/CN203644317U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700323A (en) * | 2013-12-31 | 2014-04-02 | 深圳市澳柯瑞科技有限公司 | Frame-free display device and joint-free large-screen splicing display system |
| CN103700323B (en) * | 2013-12-31 | 2015-12-23 | 深圳市澳柯瑞科技有限公司 | The large-screen splicing display system of frame-free displaying device and elimination piece |
| WO2016023283A1 (en) * | 2014-08-14 | 2016-02-18 | 深圳市华星光电技术有限公司 | Bezel-less display |
| US10012857B2 (en) | 2015-11-06 | 2018-07-03 | Champ Vision Display Inc. | Display apparatus including a prism module |
| US10067369B2 (en) | 2015-11-06 | 2018-09-04 | Champ Vision Display Inc. | Display apparatus with a prism module including a corner prism set disposed on a corner region |
| US10504451B2 (en) | 2016-08-08 | 2019-12-10 | Champ Vision Display Inc. | Display apparatus with multi screens and display signal control method thereof |
| US10809959B2 (en) | 2017-10-25 | 2020-10-20 | Champ Vision Display Inc. | Multi-screen display device |
| US10929086B2 (en) | 2018-02-22 | 2021-02-23 | Champ Vision Display Inc. | Multi-screen display apparatus and display method thereof |
| US11382219B2 (en) | 2018-06-06 | 2022-07-05 | Champ Vision Display Inc. | Multi-screen display apparatus |
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