CN102074170A - High-resolution streamer light-emitting diode (LED) display screen - Google Patents
High-resolution streamer light-emitting diode (LED) display screen Download PDFInfo
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- CN102074170A CN102074170A CN 201110032865 CN201110032865A CN102074170A CN 102074170 A CN102074170 A CN 102074170A CN 201110032865 CN201110032865 CN 201110032865 CN 201110032865 A CN201110032865 A CN 201110032865A CN 102074170 A CN102074170 A CN 102074170A
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Abstract
The invention discloses a high-resolution streamer light-emitting diode (LED) display screen, which comprises a rotating wheel, a plurality of display strips and a rotating wheel driving motor, wherein the display strips are uniformly distributed at the outer edge of the rotating wheel; the lower end of a central shaft of the rotating wheel is arranged on a base through a bearing; the rotating wheel driving motor is fixed on the base; an output shaft of the rotating wheel driving motor is connected with the central shaft of the rotating wheel through a transmission mechanism; each display strip consists of a strip-shaped connecting piece and n rows of LED tubes which are distributed on the strip-shaped connecting piece at equal interval; the LED tubes are electrically connected with a control circuit; d represents the interval between two adjacent LED tubes in each row of LED tubes; and the n rows of LED tubes are staggered downwards or upwards in turn at the interval of d/n. A plurality of LED tubes are arranged between two adjacent LED tubes of each original display strip in a transverse row staggered way, so that the longitudinal central interval between adjacent LED tubes on each display strip is shortened effectively, and dynamic resolution of the streamer LED display screen is greatly increased.
Description
Technical field
The present invention relates to a kind of improved streamer LED full-colour display screen, belong to the display technique field.
Background technology
At present, because of being subjected to the restriction of bottlenecks such as retrofit, the heat radiation of screen body, the resolution of plate type LED display screen is difficult to reach 80,000 pixels/more than the m2, though can make the resolution raising by increasing the wiring board number of plies (as adopting 6 layers of wiring board) and installing method such as air conditioner forced heat radiation additional, but so also can cause the rising of display screen failure rate, the three-in-one LED of SMT that in addition accounts for display screen material cost about 60% holds at high price, and the integrated cost that makes the plate type LED display screen increases substantially and loses the market competitiveness.
In order to address the above problem, the patent document that Chinese patent ZL02282640.8, name are called " streamer LED full-colour display screen " discloses a kind of " streamer LED display ", this display screen is according to " persistence of vision principle ", the quick controlled flicker of the bar-shaped LED lattice array that utilization rotatablely moves changes, and is implemented in the screen display under the motion state.The resolution of " streamer display screen " has had than classic flat-plate formula LED display and has significantly improved, reached 120,000～500,000 pixels/m2, but still it is not ideal enough, this under many circumstances resolution can not satisfy display requirement, and being subjected to the restriction of the minimum basic size of retrofit and components and parts, the resolution of this display screen is difficult to promote again.Therefore, the resolution that how further to promote LED display has just become the present difficult problem that faces of relevant technologies personnel.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of high resolving power time formula LED display is provided, to satisfy the display requirement that improves constantly.
Problem of the present invention realizes with following technical proposals:
A kind of high resolving power time formula LED display comprises runner, is distributed in several show bars and runner drive motor on the runner outer in the formation, the lower end of described runner central shaft by Bearing Installation on base; Described runner drive motor is fixed on the base, and its output shaft joins by the central shaft of gear train and runner; Described show bar is listed as equally spaced LED pipe and forms by being fixed in the strip web member on the runner outer and being arranged in n on the strip web member, described LED pipe all is electrically connected with control circuit, represent the spacing of adjacent two LED pipes in the every row LED pipe with d, then the n row LED pipe spacing of d/n that staggers downward or upward successively.
Above-mentioned high resolving power time formula LED display also comprises auxiliary drive motor in the formation, described auxiliary drive motor is fixed on the base by support, and its output shaft is provided with friction pulley, and described friction pulley leans in the friction of inboard, runner lower end and is with.
Above-mentioned high resolving power time formula LED display is set with slip ring on the described runner central shaft, is provided with carbon brush in a side of slip ring, and described carbon brush is fixed on the base by the overcoat of runner central shaft, and described slip ring is connected with power input by lead.
Above-mentioned high resolving power time formula LED display, it also is provided with picture control synchro structure, and described synchronizing linkage are made up of infrared transmission pipe and infrared receiving tube, and described infrared transmission pipe is fixing on the coat, and described infrared receiving tube is fixed on the runner.
The present invention adopts horizontal row dislocation mode to increase some LED pipes between two adjacent LED pipes of original show bar, has effectively shortened longitudinal center's spacing of LED pipe on the show bar, thereby has improved the dynamic resolution of streamer LED display greatly.According to present retrofit level, the present invention can realize being better than " the huge high definition colour TV " of CRT, PDP, LCD display media fully.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the arrangenent diagram of show bar on runner;
Fig. 3 is the structural representation of show bar.
Each label is among the figure: 1, control circuit; 2, LED pipe; 3, Bluetooth Receiver; 4, Switching Power Supply; 5, fixed head; 6, strip web member; 7, runner; 8, central shaft; 9, infrared receiving tube; 10, friction band; 11, friction pulley; 12, auxiliary drive motor; 13, support; 14, carbon brush; 15, overcoat; 16, earth point; 17, base; 18, driving belt; 19, belt pulley; 20, runner drive motor; 21, slip ring; 22, show bar; 23, infrared transmission pipe.
Embodiment
LED streamer display screen comprises display modes such as column type, ball-type, fan type or dish-type.Its principle of work is roughly the same, consists essentially of rotating carrier, LED and driving circuit, infrared sensor or Magnetic Sensor, control system etc.Be that example is explained its principle of work with infrared sensing column type formula now.
Referring to Fig. 1, Fig. 2, Fig. 3, on the A～H position on the column type carrier (runner 7) show bar 22 is installed, show bar 22 comprises strip web member 6(bar shaped wiring board) and be installed in LED chip for driving and some LED above the strip web member 6.Installing and fixing control circuit 1 in the column type carrier inside, control circuit 1 connect by winding displacement and control show bar 1 on the LED chip for driving, thereby reach the purpose of control LED pixel.Infrared transmission pipe 23 is installed on overcoat 15 upper holders of the central shaft of column type carrier, and on column type carrier correspondence position, install infrared receiving tube 9, after the rotation of column type carrier, infrared receiving tube 9 on the carrier rotates at every turn can receive the signal that sends pipe when 23 positions are managed in infrared transmission, represent that the column type carrier has rotated a week this moment.
When control circuit 1 control LED complete bright after, if the column type carrier along the central shaft fast rotational, human eye then can feel that the whole surfaces of revolution of column type carrier is all luminous because of the phenomenon of " persistence of vision ".If all LED are not bright entirely, but show or extinguish the demonstration that then can realize data or picture in specific time and certain location.Realize combining of this " space-time " and " location sky ", can adopt following method:
If it is t second that infrared receiving tube receives the mistiming of twice signal, represent that then this carrier speed is 1/t(revolutions per second), system according to this rotating speed can calculate a certain moment A point show bar the position (system at every turn with receive infrared signal be starting point constantly, when when " t second ", this " space-time " was divided into the M equal portions, rotated the t/M circle at t/M moment carrier), if system shows specific content at this position control LED, just can be implemented in the function that this " locus " shows.Suppose M=320, then expression has been divided into 320 row to whole display surface, show the 1st row pixel data at the 1st " t/M " moment A place show bar, at the 2nd " t/M " constantly, A place show bar shows the 2nd row pixel data, and at the 3rd " t/M " constantly, A place show bar shows the 3rd row pixel data ... at the 319th " t/M " constantly, A place show bar shows the 319th row pixel data, shows the 320th row pixel data at the 320th " t/M " moment A place show bar.If arrange 128 LED on the show bar, then realized the demonstration of 128*320 picture.
Display frame among the present invention is actual to be a kind of photoelectric display that is flowing, and the quality of display frame can be by time coefficient experimental formula statement, its formula: KL ∝
24(Hz)
Wherein, KL---represents the time coefficient, unit: inferior/second;
D----represents the center distance of two adjacent LEDs pipe on every row show bar, and unit is a millimeter (mm);
V----represents the linear velocity at LED place, and unit is a mm/second;
N----represents the vertical show bar columns of rotating carrier far-end LED, and unit is a bar.
By above experimental formula as can be known, want to reduce KL and promptly improve resolution and dynamically show image quality, following several scheme is arranged:
Increase V, promptly improve rotating speed, but can increase the thrust cost, and increased noise;
Increase the LED columns, can improve brightness of display screen, after the square LED physical dimension of SMT encapsulation was decided, LED columns and rotating speed V did not have contribution again to improving dynamic resolution basically;
Reduce the center distance of two adjacent LED pipes on the row show bar, but because of being subjected to process the encapsulation of positive square SMT and the restriction of retrofit level at present, it is very difficult to reduce d.
In order to increase substantially the ultra high-definition resolution of " streamer " display screen, the present invention adopts horizontal row dislocation mode to increase some LED pipes between two adjacent LED pipes of original show bar, make LED pipe longitudinal center spacing be reduced to P=d/n(mm), n is the LED pipe columns on each show bar.Utilize existing LED streamer sequential software and scanning software, can make original LED streamer dynamic resolution improve 1～n more doubly.The full-color pixel of n=5 row LED (label is n1, n2, n3, n4, n5 respectively) is arranged on supposing every, during system works, wanting picture displayed to be divided into m pixel in the horizontal direction, vertical direction is divided into k pixel (k is the integral multiple of n), the coordinate of each pixel of such picture is denoted as (0 respectively, 0) ~ (m, k)." row n1 " on the show bar " A " are sent horizontal ordinate at time t0 and are shown (hypothesis this moment " row n1 " time aerial position be the P point) for " 0 ", ordinate for the data of " 0 " ~ " k ", send horizontal ordinate at time t1 and show for the data of " 0 " ~ " k " for " 1 ", ordinate ... " row n2 " on the show bar " A "～" row n5 " sends in through the P point successively with " row n1 " horizontal ordinate, ordinate value and adds 1 pixel successively.After the display screen rotating speed reached certain speed, row n1-n5 will show complete picture.According to present retrofit level, can make " the huge high definition colour TV " that be better than CRT, PDP, LCD display media fully.
From theory and practice in conjunction with last, the experimental formula KL ∝ of time coefficient
The 24th, the theory that possesses skills, social benefit, economic benefit are worth.As for 1～n times of LED quantity of increase, little to overall cost impact, because streamer display screen LED quantity is used seldom: diameter is time ball (post) the 1 row screen of 100cm, and 1/785, the 8 colonnades screen of an equivalent plank formula is 1/98 of flat board; For novel streamer display screen, as getting n=5, is 1/20 of flat board then, and total cost has only increased about 3%, if get d=2mm n=5, its dynamic resolution is (1000mm ÷ 2mm) 2 * 5(times)=1250000 pixels/m2; If get d=2mm n=10, its dynamic resolution is 12500000 pixels/m2, and at present high definition PDP, LCD colour TV resolution (say by strictness, should be resolution) be 1366 * 768=1049088 pixel/screen, ultra high-definition colour TV resolution is 11920 * 1080=2073600 pixel/screen, New LED streamer resolution is present ultra high-definition LCD, PDP about 5 times, and contrast is higher than LCD and the PDP of 60:1 and 100:1 far away.
The present inventionAmong Fig. 1, gear train is made of belt pulley 19 and driving belt 18; Carbon brush 14 and slip ring 21 are used for to control circuit 1 power supply and shows signal are provided; 12 work when display screen starts of auxiliary drive motor are used to guarantee the runner smooth start.Shows signal also can be transmitted by Bluetooth Receiver 3.
Claims (4)
1. high resolving power time formula LED display, it is characterized in that, described display screen comprises runner (7) in constituting, is distributed in several show bars (22) and runner drive motor (20) on runner (7) outer, the lower end of described runner central shaft (8) by Bearing Installation on base (17); Described runner drive motor (20) is fixed on the base (17), and its output shaft joins by the central shaft (8) of gear train and runner (7); Described show bar (22) is listed as equally spaced LED pipe (2) and forms by being fixed in the strip web member (6) on runner (7) outer and being arranged in n on the strip web member (6), described LED pipe (2) all is electrically connected with control circuit, represent that with d every row LED manages the spacing of adjacent two LED pipes in (2), then the LED that the n row are adjacent manages the spacing of the d/n that staggers downward or upward successively.
2. according to the described high resolving power of claim 1 time formula LED display, it is characterized in that, it also comprises auxiliary drive motor (12), described auxiliary drive motor (12) is fixed on the base (17) by support (13), its output shaft is provided with friction pulley (11), and described friction pulley (11) leans on the friction band (10) of runner (7) inboard, lower end.
3. according to the described high resolving power of claim 2 time formula LED display, it is characterized in that, be set with slip ring (21) on the described runner central shaft (8), side at slip ring (21) is provided with carbon brush (14), described carbon brush (14) is fixed on the base (17) by the overcoat (15) of runner central shaft (8), and described slip ring (21) is connected with power input by lead.
4. according to the described high resolving power of claim 3 time formula LED display, it is characterized in that, it also is provided with picture control synchro structure, described synchronizing linkage are made up of infrared transmission pipe (23) and infrared receiving tube (9), described infrared transmission pipe is fixed on the overcoat (15), and described infrared receiving tube is fixed on the runner (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110032865 CN102074170A (en) | 2011-01-30 | 2011-01-30 | High-resolution streamer light-emitting diode (LED) display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110032865 CN102074170A (en) | 2011-01-30 | 2011-01-30 | High-resolution streamer light-emitting diode (LED) display screen |
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| CN102074170A true CN102074170A (en) | 2011-05-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038986A (en) * | 2017-06-08 | 2017-08-11 | 辽宁大学 | A kind of view-based access control model persists the stereo rotating display screen of principle |
| CN107808623A (en) * | 2017-10-31 | 2018-03-16 | 广州物启科技有限公司 | A kind of method and system by rotating full-color display image |
| CN111462665A (en) * | 2020-04-14 | 2020-07-28 | 河南育光智能科技有限公司 | 360-degree spherical fan holographic display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577375Y (en) * | 2002-10-28 | 2003-10-01 | 赵云龙 | Streamer LED full-colour display screen |
| CN1873767A (en) * | 2005-05-31 | 2006-12-06 | 于君 | Display unit of forming image from optical tracks through synchronous motion of multiple luminants |
| CN2909447Y (en) * | 2005-11-25 | 2007-06-06 | 光远科技股份有限公司 | High resolution pillar display screen |
| CN101866598A (en) * | 2010-05-07 | 2010-10-20 | 深圳创维－Rgb电子有限公司 | LED rotary display system and display method |
-
2011
- 2011-01-30 CN CN 201110032865 patent/CN102074170A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577375Y (en) * | 2002-10-28 | 2003-10-01 | 赵云龙 | Streamer LED full-colour display screen |
| CN1873767A (en) * | 2005-05-31 | 2006-12-06 | 于君 | Display unit of forming image from optical tracks through synchronous motion of multiple luminants |
| CN2909447Y (en) * | 2005-11-25 | 2007-06-06 | 光远科技股份有限公司 | High resolution pillar display screen |
| CN101866598A (en) * | 2010-05-07 | 2010-10-20 | 深圳创维－Rgb电子有限公司 | LED rotary display system and display method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038986A (en) * | 2017-06-08 | 2017-08-11 | 辽宁大学 | A kind of view-based access control model persists the stereo rotating display screen of principle |
| CN107808623A (en) * | 2017-10-31 | 2018-03-16 | 广州物启科技有限公司 | A kind of method and system by rotating full-color display image |
| CN111462665A (en) * | 2020-04-14 | 2020-07-28 | 河南育光智能科技有限公司 | 360-degree spherical fan holographic display |
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Application publication date: 20110525 |