CN201532741U - Light transmitting mask with evenly diffused LED pixel points - Google Patents

Light transmitting mask with evenly diffused LED pixel points Download PDF

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Publication number
CN201532741U
CN201532741U CN2009201102011U CN200920110201U CN201532741U CN 201532741 U CN201532741 U CN 201532741U CN 2009201102011 U CN2009201102011 U CN 2009201102011U CN 200920110201 U CN200920110201 U CN 200920110201U CN 201532741 U CN201532741 U CN 201532741U
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CN
China
Prior art keywords
face shield
unit
grid
mask body
mask
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Expired - Lifetime
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CN2009201102011U
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Chinese (zh)
Inventor
于建平
常春泉
樊卫兵
李文溯
左超
兰侠
白明
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Engineering Design and Research Institute of General Armament Department
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Engineering Design and Research Institute of General Armament Department
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Priority to CN2009201102011U priority Critical patent/CN201532741U/en
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Abstract

The utility model discloses a light transmitting mask with evenly diffused LED pixel points, which comprises a mask body, a grid body positioned below the mask body, and a circuit board which is positioned below the grid body, wherein a plurality of LED luminous elements are arranged on the circuit board; the mask body is grey, and a plurality of mask units formed by partition of a plurality of transverse walls and a plurality of longitudinal walls are evenly distributed on the mask body; and the grid body is transparent light white, and a plurality of blank units formed by separation and enclosure of a plurality of transverse partition boards and a plurality of longitudinal partition boards are evenly distributed on the grid body. Each mask unit of the mask body is a pixel grid of the mask body, and each blank unit of the grid body corresponds to the corresponding mask unit. The light transmitting mask can lead a whole display screen to show a light-emitting surface when in single color rather than separate pixel points, and simultaneously play a clear video image.

Description

The LED pixel is the printing opacity face shield of diffusion evenly
Technical field
The utility model relates to the LED screen, the printing opacity face shield that particularly a kind of LED pixel with atomizing effect evenly spreads.
Background technology
Progress at full speed along with the LED technology, the LED display curtain uses unusual maturation as the background of performance, but the application of rarely seen ground LED screen, and the characteristics of ground LED screen when performance is used are that the performer stands directly on the screen, in other words, the performer is closely by screen background, when miter angle was taken, back pitch had only about 3 meters from the performer, and generally upright LED screen and the performer as the canopy of the heavens is general apart more than 6 meters.Because ground LED screen is very near apart from the performer, when taking close shot, the LED pixel hot spot of handling through atomizing can the serious dazzle of disturbing the shooting picture effect.And before, the precedent that all LED screens in the whole world all thoroughly do not atomize and handle the LED point.
The atomizing of LED point is a contradiction with sharpness, because the requirement of atomizing is to eliminate pixel boundary, and this is device renderedly to go out the effect that simulation shows with what number showed in fact, because luminescence mechanism is completely different, what digital equipment will present that the display effect of simulation at first runs into is the damage of sharpness, for this reason the relation between needs assessment atomizing and the sharpness at first.Atomizing and the distance relation that projects between the printing opacity face shield of luminous point are close in addition, and needs assessment goes out the relation between projection distance and the pel spacing.
The 3rd, the atomizing effect that obtains need be realized final commercial production.Face mask structure needs certain resistance to compression and impact strength, and also be a pair of contradiction between the physical strength of above-mentioned needs and the atomizing, the height of general face mask structure is 8mm, and reach the atomizing effect that needs, it needs more than the 12mm highly at least, and the height of atomizing effect and face mask structure is closely related, and face mask structure is high more, it is big more that pointolite spreads, and mechanical property will be poor more.So need resolve the mechanical property that under the prerequisite that guarantees atomizing effect, improves face mask structure.
Summary of the invention
The purpose of this utility model provides the printing opacity face shield that a kind of LED pixel with atomizing treatment effect evenly spreads.
Above-mentioned purpose of the present utility model is achieved in that the evenly printing opacity face shield of diffusion of a kind of LED picture element, comprising:
Mask body;
Be positioned at the grid body under the described mask body; And
Be positioned at the circuit board that a plurality of LED light-emitting components are housed under the described grid body its.
Wherein, described mask body is a grey, and evenly distributes by many transverse walls and many a plurality of face shields unit that vertical wall is separated to form on the mask body.
Wherein, the upper surface of described face shield unit is protruding upward in the upper surface of transverse wall and vertical wall, and the lower surface of described face shield unit protrudes from the transverse wall and the vertical lower surface of wall downwards, thereby forming on the mask body with respect to transverse wall and vertical protruding face shield unit under the upper surface epirelief, lower surface of wall.
Wherein said grid body is shallow white Transparent color, and evenly distribution surrounds unit, a plurality of space by a plurality of lateral partitions and a plurality of longitudinal baffle.
Wherein the described face shield of each of mask body unit is a pixel grid of mask body, and wherein each unit, space of grid body is corresponding with corresponding face shield unit.
Wherein, the upper surface of each face shield unit and the LED light-emitting component light-emitting area on the circuit board are at a distance of more than 2/3rds of the pixel grid length of side, and its effect is that the LED pixel on the display screen is evenly distributed in the grid of a pel spacing at the transmitted light behind over-segmentation grid and face shield.
Wherein, described mask body and grid body are fixed together, and make each face shield unit of mask body aim at the unit, corresponding space of grid body respectively.
Wherein, the bottom of described mask body links together by the upper end of ultrasonic soldering mode and grid body.
Wherein, described each described LED light-emitting component that is installed on the circuit board places respectively among the unit, a corresponding space, unit, described a plurality of space.
Wherein, the lower end of described grid body is distributed with and is used for a plurality of supporting legs of support grid body.
Technique effect of the present utility model is: except in television relay, no matter be under the close shot or the situation of vista shot, all can perfection present outside the LED screen display effect, light decorative effect and video display effect can also be united two into one, under the prerequisite of sacrifice sharpness within reason, the one, the pixel filling rate is brought up to more than 95% by original 59%, and the pixel segmentation line is not obvious, promptly eliminate the filaments of sun between the pixel, the 2nd, the light field uniformity coefficient of each pixel grid iuuminting is more than 75%, through after the optimization of above-mentioned two aspects, the entire display screen curtain can be to present a light-emitting area in monochrome, rather than pixel one by one, eliminated dazzle, can play video image clearly simultaneously.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 shows the evenly synoptic diagram of the basic structure of the printing opacity face shield of diffusion of LED pixel of the present utility model;
Fig. 2 is the front schematic view of mask body of the present utility model;
Fig. 3 is the synoptic diagram of the A-A section of Fig. 2;
Fig. 4 is the front schematic view of grid body of the present utility model;
Fig. 5 is the schematic rear view of grid body of the present utility model;
Fig. 6 is the decomposing schematic representation of mask body of the present utility model and grid body;
Fig. 7 is the synoptic diagram that mask body of the present utility model and grid body are combined.
Embodiment
Fig. 1 has shown the evenly basic structure of the printing opacity face shield of diffusion of LED picture element of the present utility model, and the printing opacity face shield comprises as shown in Figure 1:
Be positioned at mask body 1 topmost, this mask body utmost point is used for the light of transmission LED emission, acts on the ground of stage again;
Be positioned at the grid body 2 under the described mask body 1, this grid body 2 is used for the light of LED emission is imported mask body 1, and the black-tape between each pixel on the face shield that helps to weaken; And
Be positioned at the circuit board 3 that a plurality of LED light-emitting components are housed under the described grid body 2 its, wherein each LED is higher than the substrate of circuit board, so that each LED can enter in the corresponding space 23 of grid body 2.
Fig. 2 and Fig. 3 have shown the structure of mask body 1 of the present utility model.As shown in Figure 2, mask body 1 is a grey, and evenly distributes by many transverse walls 11 and many a plurality of face shields unit 13 that vertical wall 12 is separated to form on the mask body 1.Wherein each face shield unit 13 of mask body 1 is a pixel grid of mask body.
As shown in Figure 3, the upper surface of described face shield unit 13 is protruding upward in the upper surface of transverse wall 11 and vertical wall 12, and the lower surface of face shield unit 13 protrudes in the transverse wall 11 and the vertical lower surface of wall 12 downwards, thereby forming on the mask body 1 with respect to transverse wall 11 and vertical protruding face shield unit 13 under the upper surface epirelief, lower surface of wall 12.That is to say that each pixel grid 13 of mask body 1 upper surface is epirelief slightly, make mask body 1 upper surface on the position of transverse wall 11 and vertical wall 12, form shallow grooves; And at the lower surface of mask body 1, because the lower surface of each pixel grid protrudes in transverse wall 11 and vertical wall 12 downwards, therefore at transverse wall 11 with vertically form groove on the position of wall 12, so that connect grid body 2.
The upper surface of each face shield unit 13 and the LED lamp light-emitting area on the circuit board are at a distance of more than 2/3rds of the pixel grid length of side, and its effect is that the LED pixel on the display screen (5 millimeters of luminous point physical sizes are square) is evenly distributed in the grid of a pel spacing at the transmitted light behind over-segmentation grid and face shield.Significantly do not cut apart blanking bar between the pixel, eliminated mosaic phenomenon basically, and the optical field distribution of each pixel grid does not become with watching angle on the face shield.And this face mask structure can stand 600 kilograms/square metre localised load, and the anti-personnel external force such as impact of jumping.The entire display screen curtain has reached unique display effect.
Fig. 4 and Fig. 5 have shown the shape of grid body 2.As shown in Figure 4 and Figure 5, grid body 2 is shallow white Transparent color, and evenly distribution surrounds unit, a plurality of space (that is cavity) 23 by a plurality of lateral partitions 21 and a plurality of longitudinal baffle 22.
The unit, a plurality of space 23 of grid body 2 forms one-to-one relationship with a plurality of face shields unit of mask body 1 13, and each unit, space 23 is corresponding to a corresponding face shield unit or pixel grid 13 in other words.
1 LED pixel of each unit, foursquare space (cutting apart grid) 23 parcel, the low titanium dioxide that mixes of grid, form shallow white transparence, transparent function is to make barrier have good vertical light-conducting type, the barrier wall imports pixel grid 13 edges on the face shield with LED light, with the black-tape between the pixel on the reduction face shield, and play diffusion LED luminous point, can eliminate mosaic phenomenon to greatest extent.Titanium dioxide forms shallowly has a reflex preferably in vain, and it is even to help to be transmitted to the lip-deep optical field distribution of grid, and the effect of the interference of the light between the isolate pixels point, in order to avoid cause ghost image.The face shield of 2mm or the above thickness of 2mm mixes a certain proportion of diffusion master batch, low mixes titanium dioxide and various toner, makes face shield gray when not luminous, and transmittance reached more than 33%, and guarantees that optical field distribution does not become with watching angle.
Mask body 1 is fixed together with grid body 2, makes each face shield unit 13 of mask body 1 aim at the unit, corresponding space 23 of grid body 2 respectively.This connection is preferably finished by ultrasonic soldering, and promptly the bottom of mask body 1 links together by the upper end of ultrasonic soldering mode and grid body 2.
Because the LED light-emitting component is higher than the basic of circuit board, therefore is installed in each described LED luminophor on the circuit board 3 and can be inserted into respectively in the unit 23, a plurality of space among the unit, a corresponding space.
As shown in Figure 5, the lower end of grid body 2 is distributed with and is used for a plurality of supporting legs 24 of support grid body.These supporting legs 24 pass respective through hole contact on the circuit board 3 and are used to the aluminium alloy base plate (not shown) of carrying and dispelling the heat.
Grid body 2 is made of PC material and material titanium dioxide, and it is by in transparent PC material (polycarbonate) behind Doped with Titanium white powder, the stirring and drying, the injection moulding one-shot forming.The weight part ratio of wherein transparent PC material and described titanium dioxide is transparent PC material: titanium dioxide=1: 0.001~0.003.
Mask body 1 is made of PC material, diffusion master batch and five kinds of toners, it by in transparent PC material, mix diffusion master batch and 5 kinds of toners, stirring and drying after, the injection moulding one-shot forming.
Wherein, described transparent PC material with the weight part ratio of diffusion master batch is: transparent PC material: diffusion master batch=1: 0.03~0.04; And
The weight part ratio of described transparent PC material and five kinds of toners is respectively:
Transparent PC material: toner=1: 0.0025~0.0035 that is numbered R-TC30
Transparent PC material: toner=1: 0.00075~0.00085 that is numbered R-2001
Transparent PC material: toner=1: 0.00025~0.00035 that is numbered R-4008
Transparent PC material: toner=1: 0.00007~0.00013 that is numbered R-660R
Transparent PC material: toner=1: 0.0029~0.0039 that is numbered R-9103.
Fig. 6 has shown the exploded view of mask body 1 and grid body 2, for the ease of installing, is positioned at two mask bodies 1 in installation diagram left side on the grid body 2 on figure right side.As shown in the figure, grid body 2 forms unit, a plurality of space 23 by lateral partitions 21 and longitudinal baffle 22.
Fig. 7 has shown two mask bodies 1 shown in Figure 6 has been fixed to situation on the grid body 2.
Below in conjunction with the application example of the utility model, printing opacity face shield of the present utility model is elaborated in the 2008 Summer Olympics opening ceremony.
Being intended that of pixel atomizing wanted to break away from the deep impression that traditional LED display stays to people, cooperate creative content to produce brand-new visual effect, especially close shot is taken and also can not made the people remember it being the display effect of LED display.Azulejo pixel atomizing target: when close shot was taken, the border of removing the LED pixel to greatest extent made the soft exquisiteness of display frame, as implicit moistening as the Chinese traditional Chinese painting.
In view of this, at the display characteristic of Opening Ceremony of the Games ground LED screen, be under the situation of 20.83mm at pel spacing (length of side of pixel grid), it is the PC material of 2mm that mask body 1 and grid body 2 have adopted wall thickness.Wherein the PC of mask body 1 material mixes raw materials such as diffusant, toner, titanium dioxide, and effect is a printing opacity, gray; Pixel grid 13 surface distance LED luminous points surfaces 13.8mm, make the luminescent center point to the light field uniformity coefficient greater than 75%, and light field high light, i.e. the optical field distribution of bright dipping does not change with watching angle.The PC material of grid body 2 mixes titanium dioxide in a small amount, each three-primary color LED pixel point has unit, a space 23 (cutting apart barrier), the LED light of barrier offside reflection projects face shield unit or pixel grid 13, further strengthened the uniformity coefficient of each pixel projection light, control the concentration of titanium dioxide simultaneously, make its light that is refracted on the neighbor upper sheathing no longer return, eliminated ghost phenomena.Cutting apart the thick wall of the 2mm of barrier concentrates and absorbs the handing-over line boundary of part light between upper sheathing pixel and pixel that the LED pixel is sent, the filaments of sun on the border of having weakened.Upper sheathing characteristic with face mask structure forms the almost light-emitting area of every cut-off rule, makes whole screen showing that monochrome is as same uniform uniformly light-emitting face, has eliminated mosaic phenomenon.Can show simultaneously the picture clearly that meets displaying video again.Make this screen have real not destroying and take the stage background of relaying effect.
Grid body 2 plays the effect of support simultaneously, has designed supporting leg 24 below the grid body, and supporting leg directly contacts with the aluminum alloy framework (not shown) of LED screen, and fastening with screw.Cut apart between barrier and the upper sheathing and adopt ultrasonic soldering, make it to form the integral body of a face mask structure, have anti-600 kilograms/square metre bearing capacity, and the jump of can anti-personnel performing on screen is impacted.
The shallow grooves that mask body 1 upper surface forms on transverse wall 11 and vertical wall 12 positions can strengthen non-skid property.
The utility model is successful use on the LED screen of the long picture scroll of opening ceremony of Beijing Olympic Games ground, the display frame that its perfect color representation, the uniform light field that links up distribute and be pleasantly surprised, the complete video image with Opening Ceremony of the Games has been presented to whole world spectators, make that the world one of is shake, has stayed fine memory.
Although above the utility model is had been described in detail, the utility model is not limited thereto, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of being done according to the utility model principle all should be understood to fall into protection domain of the present utility model.

Claims (10)

1. the even printing opacity face shield of diffusion of a LED picture element is characterized in that comprising:
Mask body (1);
Be positioned at the grid body (2) under the described mask body (1); And
Be positioned at the circuit board (3) that a plurality of LED light-emitting components are housed under the described grid body (2) its.
2. printing opacity face shield according to claim 1 is characterized in that, described mask body (1) is a grey, and mask body (1) is gone up a plurality of face shields unit (13) that evenly distributes and be separated to form by many transverse walls (11) and many vertical walls (12).
3. printing opacity face shield according to claim 1, it is characterized in that, the upper surface of described face shield unit 13 is protruding upward in the upper surface of described transverse wall (11) and vertical wall (12), and the lower surface of described face shield unit (13) protrudes from the lower surface of described transverse wall (11) and vertical wall (12) downwards.
4. printing opacity face shield according to claim 2 is characterized in that, described grid body (2) is shallow white Transparent color, and evenly distribution surrounds unit, a plurality of space (23) by a plurality of lateral partitions (21) and a plurality of longitudinal baffle (22) branch.
5. printing opacity face shield according to claim 4, it is characterized in that, each described face shield unit (13) of described mask body (1) is a pixel grid of mask body, and each unit, space (23) of grid body (2) is corresponding with corresponding face shield unit (13).
6. printing opacity face shield according to claim 5 is characterized in that, the upper surface of each face shield unit (13) and the LED light-emitting component light-emitting area on the circuit board are at a distance of more than 2/3rds of the described pixel grid length of side.
7. printing opacity face shield according to claim 4 is characterized in that, described mask body (1) and grid body (2) are fixed together, and makes each face shield unit (13) of mask body (1) aim at the unit, corresponding space (23) of grid body (2) respectively.
8. printing opacity face shield according to claim 7 is characterized in that, the bottom of described mask body (1) is connected by the upper end of ultrasonic soldering mode with grid body (2).
9. printing opacity face shield according to claim 4 is characterized in that, described each described LED light-emitting component that is installed on the circuit board (3) places respectively among the unit, a corresponding space, unit, described a plurality of space (23).
10. printing opacity face shield according to claim 4 is characterized in that, the lower end of described grid body (2) is distributed with and is used for a plurality of supporting legs (24) of support grid body.
CN2009201102011U 2009-07-15 2009-07-15 Light transmitting mask with evenly diffused LED pixel points Expired - Lifetime CN201532741U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159658A1 (en) * 2012-04-28 2013-10-31 北京金立翔艺彩科技股份有限公司 Stamp-on led display module
CN107610605A (en) * 2017-09-26 2018-01-19 上海欧美拉光电股份有限公司 A kind of LED may be programmed day screen
CN108615469A (en) * 2015-02-15 2018-10-02 北京环宇蓝博科技有限公司 LED display curtain cover and LED display
CN109212829A (en) * 2018-07-27 2019-01-15 江苏如高第三代半导体产业研究院有限公司 A kind of two-dimensional quadrature polarization structure of enhanced region delustring
CN109352920A (en) * 2018-10-16 2019-02-19 深圳明智超精密科技有限公司 A kind of hyperfine LED display mask and its forming method
WO2020063704A1 (en) * 2018-09-28 2020-04-02 深圳光峰科技股份有限公司 Led display screen
CN112289207A (en) * 2019-07-23 2021-01-29 深圳光峰科技股份有限公司 Shading frame and LED display device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159658A1 (en) * 2012-04-28 2013-10-31 北京金立翔艺彩科技股份有限公司 Stamp-on led display module
CN108615469A (en) * 2015-02-15 2018-10-02 北京环宇蓝博科技有限公司 LED display curtain cover and LED display
CN107610605A (en) * 2017-09-26 2018-01-19 上海欧美拉光电股份有限公司 A kind of LED may be programmed day screen
CN109212829A (en) * 2018-07-27 2019-01-15 江苏如高第三代半导体产业研究院有限公司 A kind of two-dimensional quadrature polarization structure of enhanced region delustring
WO2020063704A1 (en) * 2018-09-28 2020-04-02 深圳光峰科技股份有限公司 Led display screen
CN110969955A (en) * 2018-09-28 2020-04-07 深圳光峰科技股份有限公司 LED display screen
CN110969955B (en) * 2018-09-28 2024-04-05 深圳光峰科技股份有限公司 LED display screen
CN109352920A (en) * 2018-10-16 2019-02-19 深圳明智超精密科技有限公司 A kind of hyperfine LED display mask and its forming method
WO2020077654A1 (en) * 2018-10-16 2020-04-23 深圳明智超精密科技有限公司 Superfine led display screen mask and molding method therefor
CN112289207A (en) * 2019-07-23 2021-01-29 深圳光峰科技股份有限公司 Shading frame and LED display device

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Granted publication date: 20100721

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