CN109493749A - A kind of mounting structure and installation method of frameless transparency LED display screen - Google Patents
A kind of mounting structure and installation method of frameless transparency LED display screen Download PDFInfo
- Publication number
- CN109493749A CN109493749A CN201910066129.5A CN201910066129A CN109493749A CN 109493749 A CN109493749 A CN 109493749A CN 201910066129 A CN201910066129 A CN 201910066129A CN 109493749 A CN109493749 A CN 109493749A
- Authority
- CN
- China
- Prior art keywords
- reinforcing rib
- led lamp
- frameless
- display screen
- display unit
- Prior art date
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 37
- 239000011324 bead Substances 0.000 claims abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A kind of mounting structure of frameless transparency LED display screen, it include: display unit mould group and connection strap, the display unit mould group includes LED lamp panel and the electric-controlled box for being fixedly connected on LED light back, LED lamp panel is by pcb board and is distributed by array and is attached at the positive several LED lamp beads of pcb board and forms, strip hollow-out part is opened up between every row's LED lamp bead on pcb board, the integrally-formed reinforcing rib for having stable hollow-out part in LED lamp panel, there are holes on reinforcing rib, stud is pressed in hole, after display unit mould group is mutually spliced, the stud of alignment is screwed by connection strap and is fixedly connected.The lengthy and tedious framework box body structure of existing LED display is saved in modularized design of the present invention, so that installation becomes simple, is formed whole screen by connection strap one by one and is spliced, reduce the weight of frame section bar, guarantees the penetrating degree for increasing whole screen while flatness.
Description
Technical field
The present invention relates to field of LED display more particularly to a kind of installations of the high penetration LED display of frameless auxiliary
Structure and installation method.
Background technique
LED display is widely used in every field, and in the application of some demand light transmittances, LED display is then needed
Accomplish structure that is unobstructed or blocking less, the advantages of this structure is: (1) not keeping the sun off, can achieve perspective
Effect；(2) reach high-permeability as far as possible；(3) construction weight for effectively alleviating integral LED display screen, reaches simultaneously
Equally even preferably display effect.(4) using it is penetrating degree reach with scene aesthetic feeling combination.Utilize high penetration LED display
These characteristics, can be widely applied to the occasions such as glass curtain wall building, airport, hotel, stage, shopper window, reach preferable
Outpost display effect.
At present on the market common transparency LED display screen there are the problem of:
1) since transparency LED display screen is by one piece of block display unit module group assembling into cabinet, then by box body splicing and
At a whole screen.Building for its whole screen needs to rely on the cabinet with fixed structure, and cabinet needs solid structural support, numerous
Superfluous structural support can have an impact to the transparency of whole screen, and it is complicated to connect installation.
2) body structure is in addition to the influence to transparency, the increase to whole screen weight be also it is obvious, in some peaces
It fills under environment, to building, whole load-bearing requirements are higher.
3) there is also influences for beauty for body structure.
Summary of the invention
The technical problem to be solved by the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of frameless transparent
The mounting structure and installation method of LED display.
The present invention solve above-mentioned technical problem the technical solution adopted is that: a kind of installation of frameless transparency LED display screen
Structure, comprising: display unit mould group and connection strap, the display unit mould group include LED lamp panel and be fixedly connected on LED lamp panel
The electric-controlled box at the back side, LED lamp panel is by pcb board and is distributed by array and is attached at the positive several LED lamp beads of pcb board and forms,
Strip hollow-out part is opened up between every row's LED lamp bead on pcb board, it is integrally-formed in LED lamp panel to have stable hollow out
Partial reinforcing rib, there are holes on reinforcing rib, and stud is pressed in hole, after display unit mould group is mutually spliced, lead to
It crosses connection strap the stud of alignment screws and be fixedly connected.
It is end reinforcing rib that LED light board ends, which are arranged in, in the reinforcing rib, and the connection strap on end reinforcing rib is used simultaneously
In the horizontal and vertical connection of display unit mould group；Rather than the connection strap on end reinforcing rib is for longitudinally connected.
The LED lamp panel is made of individual one piece big lamp plate.
Described hole arranged at equal intervals are on reinforcing rib.
The LED top plate is docked by muti-piece small size lamp plate assembly, the splicing edge of electric-controlled box and each small lamp plate
It is attached fixation.
Described hole is at least arranged one on the reinforcing rib of every piece small lamp plate.
The cabinet connection sheet symmetrically protruded, the cabinet of protrusion are fixedly connected on the opposite flank of one end above and below the electric-controlled box
Connection sheet extend into electric-controlled box one end of another longitudinal arrangement, and cabinet connection sheet is fixedly connected with the side of another electric-controlled box
Face.
The connection strap is acrylic connection strap or metallic contact strips.
The stud is frustroconical copper stud.
A kind of installation method of frameless transparency LED display screen, comprising the following steps:
The first step, is arranged a plurality of reinforcing rib in the LED lamp panel of display unit mould group, and reinforcing rib is integrally formed at correspondence
Strip hollow-out part on it is following, wherein the both ends of LED lamp panel must be provided with end reinforcing rib；
Second step, the hole-opening on reinforcing rib, hole location cannot brush up against the circuit devcie of LED lamp panel, stud passed through
Clamp tool presses in hole；
Third step after the vertical or horizontal split of display unit mould group, passes through upper and lower or left and right alignment spiral shell using connection strap
Column, which screws, to be fixedly connected.
Compared with prior art, the beneficial effects of the present invention are:
1) splicing structure for optimizing display screen, abandons bulky framework box body structure, using modular design, is formed both
Simple and firm whole screen structure, while increasing penetrating degree.
2) by simplifying design, the weight of whole screen is reduced, can guarantee to make in the lesser situation of some lifting load-bearing
With.
3) can guarantee higher pixel density again while reaching high penetration, can also according to environment body color, if
The color and structural member color of display unit circuit part are counted, to reach different shops, different stages, different window phases
Matched color style.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, in which:
Fig. 1 is the structure front elevation of the embodiment of the present invention one；
Fig. 2 is the texture edge figure of the embodiment of the present invention one；
Fig. 3 is the structure front elevation of the embodiment of the present invention two；
Fig. 4 is LED lamp panel and bolt structure schematic diagram of the invention.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, the present invention is described further.Drawn in preferred embodiment
Such as "upper", "lower", "left", "right", " centre " and " one " term, only being illustrated convenient for narration, rather than to limit
The enforceable range of the present invention, relativeness are altered or modified, under the content of no substantial changes in technology, when being also considered as this hair
Bright enforceable scope.
Embodiment one
Referring to Figure 1 and Fig. 2, the installation knot of a kind of frameless transparency LED display screen of present pre-ferred embodiments design
Structure, specifically includes that the connection strap 2 of longitudinal spliced display unit mould group 1 and connection display unit mould group, and lower mask body is retouched
State each component and connection relationship.
Display unit mould group 1 includes: LED lamp panel 11 and electric-controlled box 12, and LED lamp panel 11 is distributed by pcb board and by array
And the positive several LED lamp bead compositions of pcb board are attached at, strip hollow-out part is set between LED lamp bead on pcb board
13, electric-controlled box 12 is fixedly connected in the middle part of the back side of LED lamp panel 11, the interior wire casing being equipped with up and down of electric-controlled box 12, in wire casing
It is provided with power supply and control system integration pcb board interconnected, control system integration pcb board is connect with LED lamp panel, for controlling
The power supply and imaging of LED lamp panel processed.
In actual production, LED lamp panel itself can also there are many situations, such as: LED lamp panel can be by individual
One piece big lamp plate is constituted, and is also possible to be docked by muti-piece small size lamp plate assembly, at this time electric-controlled box 12 will with it is each small
The splicing edge of lamp plate is attached fixation, and the assembling of display unit mould group is completed with this.
Multiple row waling 14, multiple row reinforcing rib are symmetrically arranged with for center two sides with electric-controlled box 12 in LED lamp panel
14 are integrally formed on corresponding strip hollow-out part 13 below, and the both ends of LED lamp panel must be provided with end reinforcing rib,
Between end reinforcing rib and electric-controlled box 12, the item number of non-end reinforcing rib can be set according to the developed width of LED lamp panel.?
There are a certain number of holes on reinforcing rib 14, hole location cannot brush up against the circuit devcie of LED lamp panel.In actual production,
If LED lamp panel is made of individual one piece big lamp plate, hole can use arranged at equal intervals mode, if LED
Lamp plate is docked by muti-piece small size lamp plate assembly, then hole is in every piece small lamp plate up to few setting one.
Fig. 4 is referred to, taper copper stud 3 is pressed in hole by clamp tool, the shape of stud 3 is truncated cones
Shape, inside setting internal screw thread, stud can also use other metal materials, and in addition shape may be set to be cylinder, and justify
It when the benefit of taper is that in insertion hole, is more conducively rigidly connected, increases soundness.
The two display unit mould groups to connect up and down are screwed fixed connect using connection strap 2 by the stud of consistency from top to bottom
It connects, is connected simultaneously using more connection straps 2 between every two display unit mould group, to realize the vertical of muti-piece display unit mould group
To splicing.
Connection strap 2 can use metal material, can also use acrylic material, be set according to application.
The mounting means of upper and lower two electric-controlled boxes 12, it is solid by screwing on the opposite flank of about 12 one end of electric-controlled box
Determine the cabinet connection sheet 15 of connected symmetrical dendrimer protrusion, the cabinet connection sheet 15 of protrusion extend into one end of another electric-controlled box 12, together
Cabinet connection sheet 15 is fixedly connected on the one end side of another electric-controlled box 12 by sample using screwing.
Embodiment two
Refer to Fig. 3, a kind of mounting structure of frameless transparency LED display screen of present pre-ferred embodiments design,
The connection strap 2 for specifically including that horizontally-spliced display unit mould group 1 and connection display unit mould group, is detailed below each
Component and connection relationship.
With embodiment one the difference is that, display unit mould group 1 be all by the stud on its end reinforcing rib into
Row is fixedly connected.Specifically, two display unit mould groups that left and right connects pass through the more of left and right alignment using a connection strap 2
Group stud, which screws, to be fixedly connected.Connection strap 2 can use metal material, can also use acrylic material, all be that basis is answered
It is set with occasion.
Embodiment three
A kind of mounting structure of frameless transparency LED display screen of present pre-ferred embodiments design, specifically includes that phase
The connection strap 2 of the display unit mould group 1 and connection display unit mould group mutually spliced, is detailed below each component and connection is closed
System.
In the present embodiment, the connecting method of display unit mould group 1 uses two kinds of vertical and horizontal simultaneously, two ways phase
In conjunction with display unit mould group is extended along two-dimensional surface direction by the connection of connection strap 2 and is extended, is wanted until meeting size
It asks.At this point, the connection strap 2 being connected on end reinforcing rib plays extremely important effect, that is, realize it is horizontally-spliced, and can be with
It contributes to be longitudinal spliced.
Example IV
Present pre-ferred embodiments design a kind of frameless transparency LED display screen installation method, mainly include with
Lower step:
The first step, is arranged a plurality of reinforcing rib in the LED lamp panel of display unit mould group, and reinforcing rib is integrally formed at correspondence
Strip hollow-out part on it is following, wherein the both ends of LED lamp panel must be provided with end reinforcing rib；
Second step, the hole-opening on reinforcing rib, hole location cannot brush up against the circuit devcie of LED lamp panel, by taper copper spiral shell
Column is pressed in hole by clamp tool；
Third step after the vertical or horizontal split of display unit mould group, passes through upper and lower or left and right alignment spiral shell using connection strap
Column, which screws, to be fixedly connected.
The present invention considers framework box body currently on the market, and structure is complicated, aggravates whole screen weight, influences flatness, blocks view
The problems such as line etc., the present invention effectively solve and improve problem above.
The modular design of A forms whole screen by connection strap one by one and splices so that installation becomes simple.
B reduces the weight of frame section bar by simple acrylic connection strap or metallic contact strips connection structure, will be whole
The weight of screen is reduced to every square metre of 6kg or less.
C is by control acrylic connection strap or the lock precision of metallic contact strips, effectively by framework box body profile
The defect of whole screen poor flatness minimizes after splicing caused by tolerance.
D, using acrylic connection strap or metallic contact strips, display unit mould group is connected by reducing framework box body profile
It picks up and, guarantee the penetrating degree for increasing whole screen while flatness.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, appoint
What those skilled in the art implements to above according to the technical essence of the invention without departing from the scope of the present invention
Any brief introduction modification, equivalent variations and modification made by example, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of mounting structure of frameless transparency LED display screen characterized by comprising display unit mould group and connection strap,
The display unit mould group includes LED lamp panel and the electric-controlled box for being fixedly connected on LED light back, and LED lamp panel is by pcb board and presses
Array is distributed and is attached at the positive several LED lamp bead compositions of pcb board, opens up length between every row's LED lamp bead on pcb board
Bar shaped hollow-out part, the integrally-formed reinforcing rib for having stable hollow-out part in LED lamp panel, there are hole on reinforcing rib,
Stud is pressed in hole, after display unit mould group is mutually spliced, the stud of alignment is screwed fixed connect by connection strap
It connects.
2. the mounting structure of frameless transparency LED display screen according to claim 1, which is characterized in that the reinforcing rib
It is end reinforcing rib that LED light board ends, which are arranged in, and the connection strap on end reinforcing rib is used for the cross of display unit mould group simultaneously
To with it is longitudinally connected；Rather than the connection strap on end reinforcing rib is for longitudinally connected.
3. the mounting structure of frameless transparency LED display screen according to claim 1, which is characterized in that the LED lamp panel
It is to be made of individual one piece big lamp plate.
4. the mounting structure of frameless transparency LED display screen according to claim 3, which is characterized in that described hole etc.
It is arranged on reinforcing rib.
5. the mounting structure of frameless transparency LED display screen according to claim 1, which is characterized in that the LED top plate
It is to be docked by the small lamp plate assembly of muti-piece, the splicing edge of electric-controlled box and each small lamp plate is attached fixation.
6. the mounting structure of frameless transparency LED display screen according to claim 5, which is characterized in that described hole exists
At least it is arranged one on the reinforcing rib of every piece small lamp plate.
7. the mounting structure of frameless transparency LED display screen according to any one of claims 1 to 6, which is characterized in that institute
It states and is fixedly connected with the cabinet connection sheet symmetrically protruded on the opposite flank of electric-controlled box or more one end, the cabinet connection sheet of protrusion protrudes into
To electric-controlled box one end of another longitudinal arrangement, cabinet connection sheet is fixedly connected with the side of another electric-controlled box.
8. the mounting structure of frameless transparency LED display screen according to any one of claims 1 to 6, which is characterized in that institute
Stating connection strap is acrylic connection strap or metallic contact strips.
9. the mounting structure of frameless transparency LED display screen according to any one of claims 1 to 6, which is characterized in that institute
Stating stud is frustroconical copper stud.
10. a kind of installation method of frameless transparency LED display screen, which comprises the following steps:
The first step, is arranged a plurality of reinforcing rib in the LED lamp panel of display unit mould group, and reinforcing rib is integrally formed at corresponding length
Following on bar shaped hollow-out part, wherein the both ends of LED lamp panel must be provided with end reinforcing rib；
Second step, the hole-opening on reinforcing rib, hole location cannot brush up against the circuit devcie of LED lamp panel, and stud is controlled by folder
Tool presses in hole；
Third step after the vertical or horizontal split of display unit mould group, is beaten using connection strap by upper and lower or left and right alignment stud
Screw is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066129.5A CN109493749B (en) | 2019-01-23 | 2019-01-23 | Mounting structure and mounting method of frameless transparent LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066129.5A CN109493749B (en) | 2019-01-23 | 2019-01-23 | Mounting structure and mounting method of frameless transparent LED display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109493749A true CN109493749A (en) | 2019-03-19 |
| CN109493749B CN109493749B (en) | 2024-01-30 |
Family
ID=65714826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910066129.5A Active CN109493749B (en) | 2019-01-23 | 2019-01-23 | Mounting structure and mounting method of frameless transparent LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109493749B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014172848A1 (en) * | 2013-04-24 | 2014-10-30 | 成卓 | Led module with magnetic mounting structure and led display screen |
| CN207250042U (en) * | 2017-10-11 | 2018-04-17 | 深圳市秀狐科技有限公司 | A kind of hollow out LED screen device |
| CN207818111U (en) * | 2018-02-05 | 2018-09-04 | 金罡视觉技术（深圳）有限公司 | A kind of connecting installation structure of LED display |
| CN207909444U (en) * | 2018-01-25 | 2018-09-25 | 深圳市洲明科技股份有限公司 | A kind of LED display |
| CN208173143U (en) * | 2018-05-14 | 2018-11-30 | 深圳市晶族科技有限公司 | LED display mould group |
| CN109147590A (en) * | 2018-11-16 | 2019-01-04 | 深圳市光祥科技股份有限公司 | LED display |
| CN209248986U (en) * | 2019-01-23 | 2019-08-13 | 金罡视觉技术（深圳）有限公司 | A kind of mounting structure of frameless transparency LED display screen |
-
2019
- 2019-01-23 CN CN201910066129.5A patent/CN109493749B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014172848A1 (en) * | 2013-04-24 | 2014-10-30 | 成卓 | Led module with magnetic mounting structure and led display screen |
| CN207250042U (en) * | 2017-10-11 | 2018-04-17 | 深圳市秀狐科技有限公司 | A kind of hollow out LED screen device |
| CN207909444U (en) * | 2018-01-25 | 2018-09-25 | 深圳市洲明科技股份有限公司 | A kind of LED display |
| CN207818111U (en) * | 2018-02-05 | 2018-09-04 | 金罡视觉技术（深圳）有限公司 | A kind of connecting installation structure of LED display |
| CN208173143U (en) * | 2018-05-14 | 2018-11-30 | 深圳市晶族科技有限公司 | LED display mould group |
| CN109147590A (en) * | 2018-11-16 | 2019-01-04 | 深圳市光祥科技股份有限公司 | LED display |
| CN209248986U (en) * | 2019-01-23 | 2019-08-13 | 金罡视觉技术（深圳）有限公司 | A kind of mounting structure of frameless transparency LED display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109493749B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW425533B (en) | High-rise building with large scale display device inside transparent glassexterior | |
| WO2021063080A1 (en) | Display main body and assembled intelligent interactive panel | |
| CN105158976A (en) | Backlight module and liquid crystal display | |
| CN209248986U (en) | A kind of mounting structure of frameless transparency LED display screen | |
| CN105986630A (en) | Vertically staggered wave unit type curtain wall | |
| CN109493749A (en) | A kind of mounting structure and installation method of frameless transparency LED display screen | |
| CN207489386U (en) | A kind of LED transparent display screens of high penetration degree | |
| CN110070802A (en) | A kind of arc-shaped LED display screen | |
| CN107476508B (en) | A kind of intelligence sunshade trellis system | |
| CN206431981U (en) | A kind of section bar body structure of LED display | |
| CN203070706U (en) | Dragging cloth lamp box section bar | |
| CN104746781A (en) | Large-span cable, steel truss and glass rib combined structure curtain wall and construction method thereof | |
| CN213904791U (en) | Novel LED display screen assembly capable of being spliced | |
| CN209928868U (en) | Arc LED display screen | |
| CN212161168U (en) | Mounting structure of display screen | |
| CN210459881U (en) | Aluminum alloy decorative line system | |
| CN208779278U (en) | Modularity panel light | |
| CN209248987U (en) | A kind of frameless transparency LED display module | |
| CN209179268U (en) | Window wall system type unitized curtain wall | |
| CN201649485U (en) | LED glass baffle board television wall | |
| CN208737816U (en) | A kind of LED display cloud media that can be seamless spliced | |
| CN207814910U (en) | Aluminium section bar splicing construction | |
| CN214614863U (en) | Curtain wall node structure and glass curtain wall | |
| CN205261204U (en) | Play participating in of connection effect, limit frame aluminum profiles and subassembly product | |
| CN211952426U (en) | Dull and stereotyped lamp in inclined plane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |