CN110390891A - A kind of LED display mask - Google Patents
A kind of LED display mask Download PDFInfo
- Publication number
- CN110390891A CN110390891A CN201910715978.9A CN201910715978A CN110390891A CN 110390891 A CN110390891 A CN 110390891A CN 201910715978 A CN201910715978 A CN 201910715978A CN 110390891 A CN110390891 A CN 110390891A
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- China
- Prior art keywords
- led display
- led
- lamp bead
- plate
- mask
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The present invention provides a kind of LED display mask, it is mounted in the LED lamp panel equipped with multiple lamp beads, LED display mask includes touching capacitance plate and deflecting plate, deflecting plate is equipped with multiple accommodating chambers, accommodating chamber includes the bottom of chamber wall surface of corresponding curvature and extends interior sidewall surface from the edge-perpendicular of bottom of chamber wall surface, accommodating chamber all covers on lamp bead inside mask, and LED lamp bead and deflecting plate are there are spaced slot and deflecting plate away from LED display side is a good plane；Capacitance plate will be touched and be integrated to the plane away from LED display side, touching capacitance plate has touch function.The LED display mask can effectively play dust-proof, anticollision effect, bottom of chamber wall surface and light-emitting surface are expanded the lamp bead visible angle that shines as two planes of refraction twice, expand LED display visible angle, it solves LED display angles of display and is limited to 120 ° of light emitting angers of lamp bead, the present invention can allow luminous visible angle to reach 173 degree, close to 180 degree plane.
Description
Technical field
The invention belongs to LED display technical fields, are related to a kind of LED display mask.
Background technique
LED display has high brightness, wider viewing angle, good color rendition energy relative to LCD display
Power, the realization of good ductility are seamless spliced, have been widely used in stage, airport, market, hotel, high-speed rail, subway, shadow
Institute, exhibition, office building etc., target customer's consuming capacity is strong, has huge advertisement value.
The technology in related LED display processing and manufacturing and LED display mask processing and manufacturing field:
1, SMD (Surface Mounted Devices) technology of LED: LED lamp bead is mounted in PCB surface, is distributed as square
Point light source is constituted area source by a burst of column, sees attached drawing 1；
2, traditional LED display mask protects lamp bead using mesh-structured mask；
3, LED display assemble method:
Bottom case is threadedly coupled with PCB (having pasted lamp bead)；PCB lamp bead face is subjected to encapsulating, by mesh mask and PCB lamp
Pearl face is threadedly coupled；
4, COB technique: being integrated in luminescence chip in pcb board, is not one is welded on as SMD technology
On pcb board, surface is irrigated by epoxy resin.
Chinese patent literature CN208488927U discloses a kind of LED protecting mask, primary structure and function such as Fig. 2-4
It is shown:
In Fig. 2-4, mask body 701, LED light 702, projection surface 703, LED lamp panel 704, clearance position 705, side plate
706, accommodating chamber 707, annular accent end face 708, interior sidewall surface 709, accent 710, first partition 711, bottom of chamber wall surface 712, show
Show plate 713, light-emitting surface 714, second partition 715.
The LED protecting mask includes the mask body 701 made by transparent material, and the light that LED light 702 issues can pass through
Mask body 701, while the mask body 701 of transparent material production can be used for absorbing the light that LED light 702 issues, using
Light is scattered to 701 the inside of mask body, to becoming the not light emitting region between each LED light 702 by filtering, refraction processing
At light emitting region；Mask body 701 is provided with multiple be set side by side for accommodating each LED respectively towards 704 side of LED lamp panel
The accommodating chamber 707 of lamp 702.
Accommodating chamber 707 has accent 710, is surrounded on 710 periphery of accent with the annular for being fixed in LED lamp panel 704
Accent end face 708 and the bottom of chamber wall surface 313 for being oppositely arranged and be used to be covered on 702 top of LED light with the interval of accent 710；Ring
Shape accent end face 708 is equipped with clearance position 705 close to the inside of accent 710, which shifts to install with weld pads, into
And annular accent end face 708 is flat and fit with LED lamp panel 704.The inner wall of accommodating chamber 707 include bottom of chamber wall surface 712 with
And interior sidewall surface 709, interior sidewall surface 709 extend to annular accent end face 708 from the edge of bottom of chamber wall surface 712, clearance position 705 is recessed
Set on the junction of interior sidewall surface 709 and annular accent end face 708, in order to be stayed in the LED lamp panel 704 of LED light 702
The weld pads position got off is corresponding.
Mask body 701 has the light-emitting surface 714 back to accent 710, and light-emitting surface 714 is all smooth flat, annular accent
End face 708 is also smooth flat, and mask body also has the display board 713, side plate 706 for being surrounded on 713 edge of display board, multiple
Spaced first partition 711 and multiple intervals setting and with the interlaced second partition to connect of first partition 711
715, light-emitting surface 714 is located at the outer surface of display board 713, and side plate 706 and display board 713 form groove body, multiple first partitions 711
And second partition 715 is all located in groove body and the groove body is separated into multiple accommodating chambers 707, accommodating chamber 707 is by LED lamp panel 704
On LED light 702 be coated on completely the inside.
Problem of the existing technology is, due to the technology of LED light, luminous visible angle is limited to 120 ° and sees attached drawing
5；LED display cannot achieve touch screen due to lamp bead protrusion；In the prior art in annular accent end face close to the inside of accent
Equipped with clearance position and LED lamp panel is spliced by membrane module, and clearance position and piece are excessively obvious, influence visual effect；This is existing
There is the LED protecting mask in technology to be made by transparent material, due to lamp bead color limitation cause display when black white contrast very
It is low.
In addition at this stage COB technique due to production technology, technical maturity it is not high, can not still replace SMD lamp bead encapsulate.
Summary of the invention
To solve above-mentioned problem existing for existing LED display, technical solution provided by the invention is to provide a kind of LED
It shows that screen cover, the mask body are mounted in the LED lamp panel equipped with multiple lamp beads, including touches capacitance plate and deflecting plate.
The deflecting plate is arranged towards LED lamp panel side comprising multiple certain intervals, for accommodating the appearance of each corresponding lamp bead
It receives chamber and is made backwards to LED lamp panel side in combination with the plane for touching capacitance plate；The accommodating chamber includes bottom of chamber wall surface and inside
Wall surface, the bottom of chamber wall surface are the curved surface with corresponding curvature, and the curvature of bottom of chamber wall surface can be by edge-lit incidence angle and maximum
It after incidence angle matching, is calculated using accumulative superposition algorithm is reflected, maximum incident angle can be by deflecting plate Refractive Index of Material and opposite folding
It penetrates rate and required maximum refraction angle calculates, the minimum point of the bottom of chamber wall surface is higher than lamp bead height；The inner wall side is from chamber
The edge-perpendicular of wall surface extends to the accommodating chamber bottom surface contacted with LED lamp panel；
The touch capacitance plate, is incorporated in the plane of the deflecting plate, and the touch of display screen can be realized by touching capacitance plate
Function；The light that lamp bead in LED lamp panel issues is by the bottom of chamber wall surface of the deflecting plate and the light-emitting surface of the touch capacitance plate
Refraction twice so that its visible angle that shines by 120 ° is expanded to 173 °.
Further, LED display mask provided by the invention, the width of the spaced slot between the accommodating chamber and lamp bead
Degree is within 0.2mm-0.35mm.
Further, LED display mask provided by the invention corresponds to mould group in the light-emitting surface for touching capacitance plate
Part edge joint position slots width as 0.4mm, and groove depth is the V-groove structure of 0.2mm.
Further, LED display mask provided by the invention adjusts the compartment of mask height and lamp bead away from making lamp
Pearl emitting edge light is in corresponding V-groove.
Further, LED display mask provided by the invention adds the expansion of corresponding percentage inside the deflecting plate
Loose powder.
Further, LED display mask provided by the invention, the mask body thickness are no more than 3mm, the touch
The thickness of capacitance plate can be 0.5mm.
Innovative point and beneficial effect of the invention is:
(1) LED display mask provided by the invention, bottom of chamber wall surface and light-emitting surface shine lamp bead as two planes of refraction
Visible angle is expanded twice, expands LED display visible angle, is solved LED display angles of display and is limited to lamp
120 ° of light emitting angers of pearl, the present invention can allow luminous visible angle to reach 173 degree, close to 180 degree plane.
(2) LED display is unified into complete plane by LED display mask provided by the invention, can by bonding or
Person merges technique and integrates capacitive touch panel on mask, solves LED display due to lamp bead protrusion, can not merge touch
The problem of screen, while lamp bead all being covered in inside mask, dust-proof, anticollision effect can be effectively played, solves SMD technology
LED display lamp bead is easy by collision problem.
(3) spacing of mask inner hole is set within 0.2-0.35mm, greater than the controllable precision 0.01mm of lamp bead welding, is made
The spacing with lamp bead can be kept by obtaining lampshade.Can effectively avoid lampshade collision lamp bead in lampshade installation process leads to lamp bead rosin joint
Problem.
(4) since the actual piece of membrane module is all controllably within 0.2mm, it is in the light-emitting surface fluting width for touching capacitance plate
0.4mm, groove depth are the V-groove structure of 0.2mm, by visual effect, human eye are allowed to ignore piece influence, while can increase beauty
Effect.
(5) colorant that corresponding percentage is added in plate material is being reflected, the colorant is adjusted using spread powder, not shadow
Ring light transmittance under the premise of allow mask or whole screen to become black, solve the problems, such as that LED display black white contrast is low, make its
Bright dark alternating is distincter, increases black white contrast.
Detailed description of the invention
Fig. 1 is SMD technology LED display composition figure in the prior art.
Fig. 2 is the structural schematic diagram of the LED component of the prior art.
Fig. 3 is the structural schematic diagram of one angle of LED protecting mask of the prior art.
Fig. 4 is the structural schematic diagram of another angle of the LED protecting mask of the prior art
Fig. 5 is LED lamp bead light emitting angle figure.
Fig. 6 is that LED display mask provided by the invention uses schematic diagram.
Fig. 7 is that the luminous visible angle of LED display mask lamp bead provided by the invention expands schematic diagram.
Fig. 8 is LED display face mask structure schematic diagram provided by the invention.
Fig. 9 is the enlarged structure schematic diagram of LED display mask provided by the invention.
Attached concrete meaning marked in the figure is as follows:
The cross section 1-PCB, 2- epoxy resin, 3- copper wire, 4- chip, 5-RPA bracket, 6- scolding tin, 701- mask body,
702-LED lamp, 703- projection surface, 704-LED lamp plate, 705- clearance position, 706- side plate, 707- accommodating chamber, 708- annular accent
End face, 709- interior sidewall surface, 710- accent, 711- first partition, the bottom of chamber 712- wall surface, 713- display board, 714- light-emitting surface,
715- second partition, the bottom of chamber 8- wall surface, 9- light-emitting surface, 10- mould group abutment joint, 11-V type groove, 12- touch capacitance plate, 13- refraction
Plate, 14- lamp bead, 15- accommodating chamber, 16- mask body, 17-LED lamp plate, 18- interior sidewall surface, 19- edge-lit incidence angle, 20-
Shine refraction angle, 21- maximum incident angle, 22- maximum refraction angle, 23- lamp bead height, 24- mask height, 25- spaced slot.
Specific embodiment
The specific embodiment of the invention is described with reference to the accompanying drawings and embodiments:
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than device or original part shown in indication or suggestion must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
As Figure 6-9, LED display mask provided in this embodiment, comprising: mask body 16, by mask body 16
It is mounted in the LED lamp panel 17 equipped with multiple lamp beads 14, mask body 16 includes touching capacitance plate 12 and deflecting plate 13, will be reflected
Plate 13, which is made, has multiple certain intervals for accommodating the accommodating chamber 15 of each lamp bead 14 and backwards to LED towards 17 side of LED lamp panel
17 side of lamp plate is good plane, touches capacitance plate to not only protective action can have been played to lamp bead 14 but also can combined in its plane
12；The deflecting plate 13 combines current Shooting Technique, guarantees the width of the spaced slot 25 between accommodating chamber 15 and lamp bead 14
Within 0.2mm-0.35mm, accommodating chamber 15 covers the lamp bead 14 in LED lamp panel 17 completely, avoids installing in mask body 16
There is problem of faulty soldering in lamp bead 14 in the process, can also play the role of effective dust-proof, anticollision to LED lamp panel 17, using Shooting Technique
The PP material internal for making deflecting plate 13 adds the spread powder of corresponding percentage, so that mask is become black, makes its bright dark alternating more
It is distinct not influence light transmittance again.Capacitance plate 12 is touched using in adhesive bonding to the plane of deflecting plate 13, is touching capacitance plate
It is 0.4mm that 12 light-emitting surface 9, which corresponds to membrane module edge joint position fluting width, and groove depth is the V-groove 11 of 0.2mm, since mould group is docked
The width of seam 10 is can be controlled within 0.2mm, human eye can be made to ignore the influence of piece by visual effect, be touched capacitance plate 12
With a thickness of 0.5mm, the thickness of mask body 16 is no more than 3mm.The touch function of display screen can be realized by touching capacitance plate 12.
Accommodating chamber 15 includes the bottom of chamber wall surface 8 of corresponding curvature and the bottom that accommodating chamber 15 is extended to from the edge of bottom of chamber wall surface 8
The interior sidewall surface 18 in face；The minimum point of bottom of chamber wall surface 8 is higher than lamp bead height 23, and the curvature of bottom of chamber wall surface 8 can be entered by edge-lit
After firing angle 19 is matched with maximum incident angle 21, calculated using accumulative superposition algorithm is reflected；Maximum incident angle 21 can be reflected by material
Rate and relative index of refraction and required maximum refraction angle calculate.In order to avoid no refraction effect, lamp bead edge-lit light passes through
The compartment of mask height 24 and lamp is adjusted away from being exactly within corresponding V-groove 11, so that the light that lamp bead 14 issues passes through
Light is scattered into 16 the inside of mask body after the refraction of mask body 16, filtration treatment, thus by between each lamp bead 14 not
Light emitting region becomes light emitting region, and its visible angle that shines is expanded to 173 ° by 120 °.Interior sidewall surface 18 uses glue and LED
Lamp plate 17, which is pasted, to be fixed.
A specific embodiment of the invention has made detailed explanation to the contents of the present invention, but does not limit to this implementation
Example, those skilled in the art are according to the present invention to enlighten any obvious change done, and belongs to right of the present invention and protects
The range of shield.
Claims (6)
1. a kind of LED display mask, including mask body, the mask body are mounted on the LED lamp panel equipped with multiple lamp beads
On characterized by comprising deflecting plate and touch capacitance plate；
The deflecting plate is arranged towards LED lamp panel side comprising multiple certain intervals, for accommodating the accommodating chamber of each corresponding lamp bead,
It is made backwards to LED lamp panel side in combination with the plane for touching capacitance plate；The accommodating chamber includes bottom of chamber wall surface and interior sidewall surface, institute
Stating bottom of chamber wall surface is the curved surface with corresponding curvature, and the curvature of bottom of chamber wall surface can be by edge-lit incidence angle and maximum incident angle
After matching, calculated using accumulative superposition algorithm is reflected, maximum incident angle can by deflecting plate Refractive Index of Material and relative index of refraction and
Required maximum refraction angle calculates, and the minimum point height of the bottom of chamber wall surface is higher than lamp bead height；The inner wall side is from bottom of chamber wall
The edge-perpendicular in face extends to the accommodating chamber bottom surface contacted with LED lamp panel；
The touch capacitance plate, is fixed in the plane of the deflecting plate, and the touch function of display screen can be realized by touching capacitance plate；
The light that lamp bead in LED lamp panel issues by the deflecting plate bottom of chamber wall surface and the light-emitting surface for touching capacitance plate
It reflects twice, the visible angle that shines is expanded to 173 ° by 120 °.
2. LED display mask according to claim 1, which is characterized in that the interval between the accommodating chamber and lamp bead
The width in gap is 0.2mm-0.35mm.
3. LED display mask according to claim 2, which is characterized in that in the light-emitting surface pair for touching capacitance plate
Width should be slotted as 0.4mm in membrane module edge joint position, groove depth is the V-groove structure of 0.2mm.
4. LED display mask according to claim 3, which is characterized in that the compartment of adjustment mask height and lamp bead
Away from being in lamp bead emitting edge light in corresponding V-groove.
5. LED display mask according to claim 1, which is characterized in that add corresponding hundred inside the deflecting plate
Divide the spread powder of ratio.
6. LED display mask according to claim 4, which is characterized in that the mask body thickness is no more than 3mm,
The thickness for touching capacitance plate can be 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715978.9A CN110390891B (en) | 2019-08-05 | 2019-08-05 | L ED display screen mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715978.9A CN110390891B (en) | 2019-08-05 | 2019-08-05 | L ED display screen mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110390891A true CN110390891A (en) | 2019-10-29 |
| CN110390891B CN110390891B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910715978.9A Active CN110390891B (en) | 2019-08-05 | 2019-08-05 | L ED display screen mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110390891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243454A (en) * | 2020-03-25 | 2020-06-05 | 利亚德智慧显示(深圳)有限公司 | Display screen |
| CN114023210A (en) * | 2021-11-23 | 2022-02-08 | 东莞阿尔泰显示技术有限公司 | LED display module suitable for cinema screen and manufacturing process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605437A (en) * | 2013-11-07 | 2014-02-26 | 广东威创视讯科技股份有限公司 | Led display screen |
| CN103927944A (en) * | 2013-01-16 | 2014-07-16 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) display screen |
| JP2014153708A (en) * | 2013-02-06 | 2014-08-25 | Vision Development Co Ltd | Transparent light diffusion body and transmissive screen using the same |
| CN204066076U (en) * | 2014-07-04 | 2014-12-31 | 北京搜狗科技发展有限公司 | A kind of touch panel display device |
| CN105445845A (en) * | 2015-12-28 | 2016-03-30 | 深圳市真屏科技发展有限公司 | Optical lens type light guiding device of LED screen |
| CN205862718U (en) * | 2016-06-20 | 2017-01-04 | 利亚德光电股份有限公司 | Face shield and there is its LED display |
| CN205910968U (en) * | 2016-08-23 | 2017-01-25 | 湖南明和光电设备有限公司 | LED display screen face guard of multiplicable visible angle |
-
2019
- 2019-08-05 CN CN201910715978.9A patent/CN110390891B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103927944A (en) * | 2013-01-16 | 2014-07-16 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) display screen |
| JP2014153708A (en) * | 2013-02-06 | 2014-08-25 | Vision Development Co Ltd | Transparent light diffusion body and transmissive screen using the same |
| CN103605437A (en) * | 2013-11-07 | 2014-02-26 | 广东威创视讯科技股份有限公司 | Led display screen |
| CN204066076U (en) * | 2014-07-04 | 2014-12-31 | 北京搜狗科技发展有限公司 | A kind of touch panel display device |
| CN105445845A (en) * | 2015-12-28 | 2016-03-30 | 深圳市真屏科技发展有限公司 | Optical lens type light guiding device of LED screen |
| CN205862718U (en) * | 2016-06-20 | 2017-01-04 | 利亚德光电股份有限公司 | Face shield and there is its LED display |
| CN205910968U (en) * | 2016-08-23 | 2017-01-25 | 湖南明和光电设备有限公司 | LED display screen face guard of multiplicable visible angle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243454A (en) * | 2020-03-25 | 2020-06-05 | 利亚德智慧显示(深圳)有限公司 | Display screen |
| CN114023210A (en) * | 2021-11-23 | 2022-02-08 | 东莞阿尔泰显示技术有限公司 | LED display module suitable for cinema screen and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110390891B (en) | 2020-07-17 |
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