CN105278101B - Method for designing lattice points of laser processing light guide plate - Google Patents
Method for designing lattice points of laser processing light guide plate Download PDFInfo
- Publication number
- CN105278101B CN105278101B CN201510157386.1A CN201510157386A CN105278101B CN 105278101 B CN105278101 B CN 105278101B CN 201510157386 A CN201510157386 A CN 201510157386A CN 105278101 B CN105278101 B CN 105278101B
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- site
- density
- light
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 title claims abstract description 14
- 238000009826 distribution Methods 0.000 claims abstract description 27
- 238000013461 design Methods 0.000 claims abstract description 23
- 230000006870 function Effects 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005315 distribution function Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- -1 acryl Chemical group 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
the invention belongs to the technical field of light guide plate design, and aims to provide a method for designing dots of a laser processing light guide plate, wherein the dots of the light guide plate designed by the method are linearxPyand a two-dimensional coordinate plane with the geometric center of the light guide plate as the origin of coordinates is established in sequence around the formula, a light emitting area is determined, a density distribution function of the light emitting area is obtained by giving different dot density distributions by regions to determine the density distribution of the light emitting area until the length L of dots is output, a function language is converted into a computer language by a VBA development tool in the whole process to realize the automatic arrangement of linear dots, the whole dot distribution has high automation degree, the required development time is short, the development cost is low, the production process is simple, the production yield is high, and in addition, the light guide plate obtained by the method according to the distribution trend of the dots has good uniformity and meets the production requirements.
Description
Technical field
The invention belongs to light guide plate design field, is related to a kind of screen dot design method of light guide plate, more particularly to one
The screen dot design method of kind Laser Processing light guide plate.
Background technology
Light guide plate is that a kind of use has high reflectivity and not acrylic/PC plate of the hitech materials of extinction in optical grade
The bottom surface of material stamps the light guide of light guiding points, and its guide-lighting principle is mainly caused using the acryl plates of optical grade to absorb light
Light rests on the surface of sheet material, when light is mapped to light guiding points, passes through various densitys, light guiding points not of uniform size, reflected light meeting
Spread with uniformly light-emitting toward all angles and projected from the front of light guide plate, thus it will be evident that the light guiding points of light guide plate
The excellent light guide effect that can directly influence light guide plate of network point distribution.It is well known that light guide plate is LED side entrance back modules
An important component, it is possible to understand that ground, the quality of the network point distribution quality of light guide plate is to the shadow of backlight module optical property
Sound is very big.
In the prior art, the production method of light guide plate mesh point mainly has the modes such as traditional ink printing and Laser Processing,
Wherein, traditional ink printing light guide plate passes through press printing mainly using traditional materials and tool such as ink, web plates
Light guide plate, and its site mainly uses the circular shaped lattice point of GTOOLS Software for Design, its dependence to worker of such a mode is big, from
Dynamicization degree is not high, and the yield of product is not high, compare for, its exploitation of circular shaped lattice point time is long, development cost
Compare high, production technology is more complicated, yields also do not include it is too high.
The content of the invention
It is an object of the invention to provide a kind of screen dot design method for laser machining light guide plate, to solve existing lead
Its development time of the site of tabula rasa is long, development cost are high, the technical problem that production technology is more complicated and yields is not high.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of net for laser machining light guide plate is provided
Design method of points, the site for the light guide plate designed by this method is in wire, and the density D of the site is：
D=L*S/PxPy
Wherein, L be the site length, S be the site width, PxFor the site of adjacent two of same row
Geometric center level interval, PyFor the vertical interval of the geometric center of the site of adjacent two row, and described S, Px、Py
It is constant, the L is variable；
This method comprises the following steps：
S1：A two-dimensional coordinate plane is established, determines light-emitting zone, and sets the institute of adjacent two site of same row
State level interval PxWith the vertical interval P of the site of adjacent two rowy；
S2：It is determined that the density D of whole light-emitting zone distribution；
S3：Export the length L of the site；
S4：Using the VBA developing instruments of object-oriented, the length L of the distribution of the density D and the site is converted
For computer language to realize the arrangement of the site.
Further, in the step S1, using the plane of the light guide plate as the two-dimensional coordinate plane, and with described
The geometric center of light guide plate is the origin of coordinates.
Further, in the step S2, by establishing a density fonction D in the light-emitting zone(y)With true
The density D of fixed whole light-emitting zone distribution, y are the longitudinal axis using the geometric center of the light guide plate as the origin of coordinates
Coordinate.
Further, the density fonction D is established(y)There are following steps：
S21：The light-emitting zone of the light guide plate is marked off into multiple regions；
S22：Different density D distribution is assigned to each region；
S23：Obtain the density fonction D of the whole light-emitting zone(y)To determine the whole light-emitting zone
The distribution of the density.
Further, the density fonction D(y)For：
D(y)=ay6+by5+cy4+dy3+ey2+fy+g
Wherein, a, b, c, d, e, f and g are constant.
Further, in the S3 steps, by formula D=L*S/PxPyObtain the length function L of the site(y)For：
L(y)=D(y)*PxPy/S
Wherein, the starting point coordinate of the site is (X-L2, Y), and terminal point coordinate is (X+L2, Y).
Further, the PySpan be 0.5~1.5mm.
Further, the light-emitting zone rectangular shaped.
Further, the length of the light-emitting zone is 457mm, width 257mm.
Compared with prior art, the beneficial effect of the screen dot design method of Laser Processing light guide plate provided by the invention exists
In：
By the density calculation formula D=L*S/P for newly proposing linear sitexPy, and successively established centered on this formula
Two-dimensional coordinate plane, determines light-emitting zone, determines the Density Distribution of the light-emitting zone, until the length L of output site, whole mistake
Functional language is switched to computer language to realize the automatic placement of linear site, whole site point by journey by VBA developing instruments
Not only automaticity is high for cloth, and the required development time is shorter, and development cost are few, and simple production process, production it is good
Product rate is also higher, is tested in addition, the light guide plate that thus distribution trend for the site that kind method obtains obtains can pass through CA2000,
Uniformity is good, meets production requirement.
Brief description of the drawings
Fig. 1 is the logic step figure for the screen dot design method that light guide plate is laser machined in the embodiment of the present invention；
Fig. 2 is to calculate the method for dot density using four adjacent sites of two rows as unit in the embodiment of the present invention
Schematic diagram；
Fig. 3 is the song that density fonction is calculated in the screen dot design method for laser machined in the embodiment of the present invention light guide plate
Line schematic diagram；
Fig. 4 is point for calculating the site of output by laser machining the screen dot design method of light guide plate in the embodiment of the present invention
Butut.
Embodiment
In order that technical problem to be solved, technical scheme and the advantage of the present invention are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
It is described in detail below in conjunction with realization of the specific accompanying drawing to the present invention.
As shown in Figures 1 to 4, a kind of net-pont design of the Laser Processing light guide plate provided for a preferred embodiment of the present invention
Method.
For ease of improving development rate, development cost is reduced, specifically as shown in Figure 2 and Figure 4, is led by what this method was designed
The site of tabula rasa is in wire, that is, each site is linear site.It should be noted that the site is printed by laser machine identification
Come, wherein, the parameter of laser machine includes the width of linear site, depth, length etc., and generally, its depth and width is
Constant, the numerical value such as 0.1mm, 0.12mm are may be set to, and length is variable, that is, the width of the linear site of same light guide plate
As with degree depth is, simply the length of line is to change, it is possible to understand that ground, this method is mainly controlling linear site position
Put layout and determine the length of each linear site.
Meanwhile the present invention also newly proposes a kind of calculation of the density of site, the density D of the specific site calculates public affairs
Formula is：
D=L*S/PxPy………………………………(1)
Wherein, in formula (1), L be site length, S be site width, PxFor the two adjacent sites of same row
Geometric center level interval, PyFor the vertical interval of the geometric center of the site of adjacent two row, and S, Px、PyIt is constant,
L is variable.
Origin about formula (1) is specific as shown in Fig. 2 because each linear site has certain line width and certain
Line length, thus by each linear site be approximately rectangle, in the present embodiment, by adjacent linear by 4 of adjacent two row
The geometric center of site is sequentially connected, to form a prismatic, it is possible to understand that ground, the linear site of adjacent two row is generally in staggeredly cloth
Put.So, the density of site is that the gross area of available 1 rectangle divided by the area of 1 prismatic obtain, namely above-mentioned formula
(1)。
In addition, it should be noted that, length L size is relevant with the position relationship of light fixture (such as LED), generally, from light fixture
Position it is near, the length of linear site can dot, conversely, then can be a little bigger.The width S of site determines by the parameter of laser,
And PxAnd PyValue size it is then relevant with backlight shielding, that is, shielding is high, then PxAnd PyThe value taken can be larger, instead
It, then obtain dot, usual PxSpan be 0.5~1.5mm.
To realize quick exploitation and reducing development cost, this method comprises the following steps：
S1：A two-dimensional coordinate plane is established, determines light-emitting zone, and is set between the level of adjacent two site of same row
Away from PxWith the vertical interval P of the site of adjacent two rowy.It should be noted that light-emitting zone size as described herein instructs tabula rasa
Area size, that is, the length and width of light-emitting zone is the size of light guide plate, in other words, linear site can be laid out entirely
Light guide plate plane.
S2：It is determined that the density D of whole light-emitting zone distribution.It should be noted that generally, in the present embodiment, luminous zone
The linear site in domain is not what is be evenly arranged.
S3：Export the length L of site.
S4：Using the VBA developing instruments of object-oriented, the length L of density D distribution and site is converted into computer
Language is to realize the arrangement of site.
Further, in a preferred embodiment provided by the invention, for ease of being laid out linear site, in step sl,
Using the plane of light guide plate as two-dimensional coordinate plane, and using the geometric center of light guide plate as the origin of coordinates.
Further, in step S2, for ease of faster and better being distributed the dot density D of whole light-emitting zone, at this
Invent in the preferred embodiment provided, mainly by establishing a density fonction D in light-emitting zone(y), that is to say
To say, the density fonction is y function, wherein, y is the ordinate of orthogonal axes using the geometric center of light guide plate as the origin of coordinates.
Further, specifically in a preferred embodiment provided by the invention, it establishes density fonction D(y)Mainly have
Following steps：
S21：The light-emitting zone of light guide plate is marked off into multiple regions.
S22：Different density D distribution is assigned to each region, it should be noted that, typically by artificially giving each region
Different density values are assigned, in other words, the dot density distribution of regional is different.
S23：Obtain the density fonction D of whole light-emitting zone(y)To determine the distribution of the density of whole light-emitting zone.
It is to be appreciated that in the present embodiment, different numerical value mainly is assigned by the dot density of the different zones to part, and
The density fonction D of whole light-emitting zone is tried to achieve with this(y), and then to determine the density D's of the site of whole light-emitting zone
Distribution, it is clear that it can also be understood that ground, for whole light-emitting zone, the linear site of final output its be not to be uniformly distributed
's.
Further, in a preferred embodiment provided by the invention, the density point of the whole light-emitting zone finally given
Cloth function D(y)For：
D(y)=ay6+by5+cy4+dy3+ey2+fy+g……………………(2)
Wherein, a, b, c, d, e, f and g are constant, and y is that the longitudinal axis using the geometric center of light guide plate as the origin of coordinates is sat
Mark.It should be noted that a, b, c, d, e, f and g do not have special implication, simply Function Fitting is vertical, specifically in the present embodiment
In, can be by simulating to obtain by test of many times by lighttools softwares in the test of reality.
Further, in a preferred embodiment provided by the invention, in S3 steps, the length of site is obtained by formula (1)
Spend function L(y)For：
L(y)=D(y)*PxPy/S…………………………(3)
Wherein, the starting point coordinate of site is (X-L/2, Y), and terminal point coordinate is (X+L/2, Y), it is possible to understand that ground, final
The length L of the linear site of the light-emitting zone arrived is y function, specific as shown in figure 4, line for final output in light-emitting zone
The schematic diagram of property site.
And the specific procedure of the length output of site can be in VBA developing instruments：
In addition, it should be noted that, in a preferred embodiment provided by the invention, light-emitting zone rectangular shaped, and have
Body, the length of light-emitting zone is 457mm, width 257mm.Thus, its specific program in VBA developing instruments can be such as
Under：
For example, when the number of default ordinate of orthogonal axes is 21, the dot density letter of each ordinate of orthogonal axes acquired
Number Distribution Values as shown in figure 3, it is specific in figure 3, it will be evident that the dot density value in incident side (i.e. the bottom of light guide plate)
It is less than normal, and gradually increase with the increase of jet nit point and light guide plate distance from bottom, dot density, when close at the top of light guide plate, net
Dot density slowly declines again, and the density fonction for the light guide plate mesh point finally determined by curve matching is：
D=3.35317567865245E-09*y6-1.76913382343949E-07*y5-6.87866189788747E-
06*y4-8.94273608801647E-05*y3+4.07488553947074E-04*y2+1.86036043228074E-02*y+
0.202317997390535
In a word, the light guide plate that the linear site distribution trend finally designed by this method obtains can be surveyed by CA2000
Examination, and the uniformity of site is good, reaches 75%, fully meets production requirement, and can be significantly by using the design method
Ground shortens the development time, reduces development cost, the technique entirely produced is also easier, and yields is also improved.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention.For the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (9)
1. laser machining the screen dot design method of light guide plate, the light guide plate is used as light source using LED, it is characterised in that by this
The site for the light guide plate that method is designed is in wire, and the density D of the site is：
D=L*S/PxPy
Wherein, L be the site length, S be the site width, PxFor same row the site of adjacent two it is several
The level interval at what center, PyFor the vertical interval of the geometric center of the site of adjacent two row, and described S, Px、PyIt is
Constant, the L are variable；
This method comprises the following steps：
S1：A two-dimensional coordinate plane is established, determines light-emitting zone, and sets the water of adjacent two site of same row
Flat spacing PxWith the vertical interval P of the site of adjacent two rowy；
S2：It is determined that the density D of whole light-emitting zone distribution；
S3：Export the length L of the site；
S4：Using the VBA developing instruments of object-oriented, the length L of the distribution of the density D and the site is converted into meter
Calculation machine language is to realize the arrangement of the site.
2. the screen dot design method of Laser Processing light guide plate as claimed in claim 1, it is characterised in that in the step S1
In, using the plane of the light guide plate as the two-dimensional coordinate plane, and using the geometric center of the light guide plate as the origin of coordinates.
3. the screen dot design method of Laser Processing light guide plate as claimed in claim 2, it is characterised in that in the step S2,
By establishing a density fonction D in the light-emitting zone(y)To determine the density D of the whole light-emitting zone
Distribution, y is ordinate of orthogonal axes using the geometric center of the light guide plate as the origin of coordinates.
4. the screen dot design method of Laser Processing light guide plate as claimed in claim 3, it is characterised in that establish the density point
Cloth function D(y)There are following steps：
S21：The light-emitting zone of the light guide plate is marked off into multiple regions；
S22：Different density D distribution is assigned to each region；
S23：Obtain the density fonction D of the whole light-emitting zone(y)To determine described in the whole light-emitting zone
The distribution of density.
5. the screen dot design method of Laser Processing light guide plate as claimed in claim 4, it is characterised in that the Density Distribution letter
Number D(y)For：
D(y)=ay6+by5+cy4+dy3+ey2+fy+g
Wherein, a, b, c, d, e, f and g are constant.
6. the screen dot design method of Laser Processing light guide plate as claimed in claim 5, it is characterised in that in the S3 steps,
By formula D=L*S/PxPyObtain the site length function L (y) be：
L(y)=D(y)*PxPy/S
Wherein, the starting point coordinate of the site is (X-L/2, Y), and terminal point coordinate is (X+L/2, Y).
7. the screen dot design method of Laser Processing light guide plate as claimed in claim 1, it is characterised in that the PyValue model
Enclose for 0.5~1.5mm.
8. the screen dot design method of the Laser Processing light guide plate as described in any one of claim 1 to 7, it is characterised in that described
Light-emitting zone rectangular shaped.
9. the screen dot design method of Laser Processing light guide plate as claimed in claim 1, it is characterised in that the light-emitting zone
Length is 457mm, width 257mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157386.1A CN105278101B (en) | 2015-04-03 | 2015-04-03 | Method for designing lattice points of laser processing light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157386.1A CN105278101B (en) | 2015-04-03 | 2015-04-03 | Method for designing lattice points of laser processing light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105278101A CN105278101A (en) | 2016-01-27 |
| CN105278101B true CN105278101B (en) | 2018-04-10 |
Family
ID=55147406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510157386.1A Active CN105278101B (en) | 2015-04-03 | 2015-04-03 | Method for designing lattice points of laser processing light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105278101B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782387A (en) * | 2016-11-25 | 2019-05-21 | 上海三思电子工程有限公司 | The method of light guide plate mesh point distribution randomization |
| CN107272108B (en) * | 2017-05-11 | 2023-10-03 | 广东工业大学 | Design method of one-dimensional microstructure of lower surface of light guide plate |
| CN112762413A (en) * | 2019-11-04 | 2021-05-07 | 山西宇皓新型光学材料有限公司 | Light guide plate mesh point preparation method and light guide plate |
| CN111025451B (en) * | 2019-11-08 | 2022-12-02 | 安徽高美福电子有限公司 | Mesh point design method for changing integral density ratio of light guide plate aiming at hot pressing process |
| CN113064231B (en) * | 2021-04-02 | 2023-01-10 | 深圳市康冠科技股份有限公司 | Method, system and related equipment for designing distribution of dots on light guide plate |
| CN113448083B (en) * | 2021-07-05 | 2023-06-02 | 深圳市康冠商用科技有限公司 | Dot setting method and related device based on side-light type backlight module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737720A (en) * | 2009-12-24 | 2010-06-16 | 广州大学 | Screen dot design method of side light type light guide plate of LED light source |
| CN201628178U (en) * | 2009-12-31 | 2010-11-10 | 深圳市山本光电有限公司 | Light guide plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694923A (en) * | 1991-07-25 | 1994-04-08 | Ono Gijutsu Kenkyusho:Kk | Thin-walled light box |
-
2015
- 2015-04-03 CN CN201510157386.1A patent/CN105278101B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737720A (en) * | 2009-12-24 | 2010-06-16 | 广州大学 | Screen dot design method of side light type light guide plate of LED light source |
| CN201628178U (en) * | 2009-12-31 | 2010-11-10 | 深圳市山本光电有限公司 | Light guide plate |
Non-Patent Citations (1)
| Title |
|---|
| 侧光式LED背光源的导光板网点设计;黄翀等;《应用光学》;20080930;第29卷(第5期);第689-692页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105278101A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105278101B (en) | Method for designing lattice points of laser processing light guide plate | |
| CN102323672B (en) | Method and device for optimizing mesh point of light guide plate | |
| CN103323894B (en) | The job operation of diffuser plate dot and processing unit (plant) | |
| CN101737720A (en) | Screen dot design method of side light type light guide plate of LED light source | |
| CN108627904B (en) | Flat lamp light guide plate mesh point arrangement structure with high light yield | |
| CN104536080B (en) | A kind of light guide plate and display device | |
| CN106932853B (en) | Light guide plate design method, light guide plate, mesh point distribution method and lighting device | |
| CN108345107A (en) | The design method of free form surface lighting system | |
| CN108279458A (en) | A kind of light guide plate optical design method | |
| US20140085930A1 (en) | Backlight Module, Display Device And Method For Eliminating Hotspot Effect | |
| CN106646728B (en) | A kind of oval screen dot design method, device and the light guide plate of light guide plate | |
| CN204629365U (en) | There is circular light guide plate and the wrist-watch thereof in uniformly light-emitting face | |
| CN108680987A (en) | A kind of network point distribution design method for liquid crystal display light guide plate | |
| Xu et al. | Analysis of the uniformity of light in a plant growth chamber | |
| CN107679286A (en) | A kind of lens design method and control system for realizing LED array Uniform Illumination | |
| CN113064231B (en) | Method, system and related equipment for designing distribution of dots on light guide plate | |
| CN209590324U (en) | A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon | |
| CN204655822U (en) | A kind of compound quality assurance die body | |
| TWI522665B (en) | Light guide plate and backlight module | |
| CN103955590A (en) | Design method of multi-zone backlight illumination lattice point | |
| CN105353439A (en) | Light guide particle free light guide plate structure | |
| CN106959554A (en) | A kind of reflective astigmat, backlight module and liquid crystal display device | |
| CN109738981A (en) | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated | |
| CN107671421A (en) | A kind of laser processing technology of light guide plate mesh point | |
| CN207094226U (en) | Light guide plate, backlight module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong city of Shenzhen province Baoan District Shiyan street water Tamura Private Industrial Park Industrial Park, building 1 HKC 2, 3 Applicant after: HKC Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Shiyan street water Tamura Private Industrial Park Industrial Park, building 1 HKC 2, 3 Applicant before: HKC ELECTRONIC (SHENZHEN) Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |