CN106346983A - Film type handwriting blackboard - Google Patents
Film type handwriting blackboard Download PDFInfo
- Publication number
- CN106346983A CN106346983A CN201610857553.8A CN201610857553A CN106346983A CN 106346983 A CN106346983 A CN 106346983A CN 201610857553 A CN201610857553 A CN 201610857553A CN 106346983 A CN106346983 A CN 106346983A
- Authority
- CN
- China
- Prior art keywords
- thin film
- hand
- written
- white light
- lamp bar
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
- B43L1/006—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices with luminescent substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/10—Writing surfaces thereof
Abstract
The invention discloses a film type handwriting blackboard. The film type handwriting blackboard comprises a framework, a white light lamp bar and a transparent board and further comprises a handwriting film and a power supply used for supplying power to the white light lamp bar, wherein the transparent board and the handwriting film are sequentially mounted in the framework from the inside to the outside; a gap is reserved between the handwriting film and the surface of the transparent board, the white light lamp bar is mounted in the framework and located on one side surface of the transparent board, and the power supply is electrically connected with the white light lamp bar; the framework is provided with a black bottom board. The film type handwriting blackboard is simple in structure, lower in production cost and easier to popularize and apply.
Description
Technical field
The present invention relates to teaching aid technical field and in particular to be a kind of hand-written blackboard of thin film.
Background technology
Traditional blackboard be usually on plank or wall brushing paint make, the advantage of this kind of blackboard be low cost,
Write conveniently, but shortcoming is also apparent from: be that chalk dust is many first, the teacher writing " is eating with the student being sitting in front row
Ash ", impact is healthy；In addition, after writing on this blackboard, after classroom, from blackboard, student farther out is difficult to see
Clearly, especially under the bad environment of daylighting, the writing on blackboard is difficult to recognize, affect using effect, the time is longer to be likely to
The vision of impact user.
For this reason, new hand-written blackboard continuously emerges, for example license notification number is cn201211785, discloses one kind
Electronic blackboard and its electronic writing pen and blackboard eraser, it mainly has LED lamp parallel with one another using uniform welding on circuit boards,
Printing opacity clipboard is located at the top of LED lamp, and is embedded with LED lamp one-to-one conductiving point in printing opacity clipboard.This
Structure LED lamp usage amount is very big, high cost, and needs with the use of special electronic lettering pen and blackboard eraser, during use more not
Just, so being difficult to popularize.Equally, license notification number is cn202677742u, discloses a kind of writable energy self luminous
Electronic multimedia blackboard, it mainly adopts the hyperfine electronic display of self-luminous led and special electronic chalk.Its cost
Height, and special electronic chalk equally will be coordinated could to use, during use, more inconvenience is it is difficult to popularize.The two is not enough
Part: be cost higher and be each respectively necessary for the use of special electronic lettering pen and special electronic chalk ability
Use, described be difficult to promotion and application.
And for example, license notification number be cn102213890a, disclose electronic blackboard, its using bottom crown, be coated on
Electronic ink layer on described bottom crown, the top crown of the described electronic ink layer of covering, directly change electronics by electric field excitation
The polarity of the upper bottom crown at the corresponding subelement of blackboard, that is, change the side of the electric field between the corresponding upper bottom crown of these subelements
To thus directly controlling electronic ink layer imaging.This electronic blackboard needs complicated electrode control circuit, and production technology is multiple
Miscellaneous it is difficult to realize large area produce.
It can be seen that, existing electronic blackboard structure is complex, and there is hand-written inconvenient, high cost problem.Therefore, having must
Design a kind of new type blackboard to solve above-mentioned problem.
Content of the invention
It is an object of the invention to provide a kind of hand-written blackboard of thin film, it is not only simple in structure, and cost is low, more
Easy to spread and application.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of hand-written blackboard of thin film, includes framework, white light lamp bar and lamella lucida, the hand-written blackboard of this thin film also includes hand-written
Thin film and color static pad pasting, and the power supply powered for described white light lamp bar, described lamella lucida, hand-written thin film and colour are quiet
Electric pad pasting is sequentially arranged in described framework from inside to outside；Between leaving between described hand-written thin film and the surface of described lamella lucida
Gap, described white light lamp bar is installed in described framework, and described white light lamp bar is located at side, described power supply and the institute of described lamella lucida
State the electrical connection of white light lamp bar；Described framework is the framework with black floor.
Preferably, the inner side of described framework is mounted on described white light lamp bar, and described white light lamp bar and described lamella lucida exist
In approximately the same plane.
Preferably, the hand-written blackboard of this thin film also includes color static pad pasting, and described color static pad pasting is installed on described frame
It is located at the outside of described hand-written thin film in frame；And leave gap between described hand-written thin film and described color static pad pasting.
Preferably, described lamella lucida is two-sided smooth all-transparent pmma plate.
Preferably, described hand-written thin film is two-sided smooth translucent milky white pet thin film.
Preferably, described white light lamp bar is white light LED lamp bar or the trichroism led of rgb combines white light lamp bar.
Using technique scheme, the method have the advantages that
First, the hand-written blackboard of the thin film of the present invention, include framework, white light lamp bar, lamella lucida, hand-written thin film and be used for institute
State the power supply that white light lamp bar is powered, framework is the framework with black floor, lamella lucida and hand-written thin film are pacified from inside to outside successively
It is contained in framework；Gap is left, hand-written thin film and lamella lucida quilt under achievable normality between hand-written thin film and the surface of lamella lucida
Air separates, and hand-written thin film is not contacted with lamella lucida, does not show white, and the hand-written blackboard of this thin film looks like in black.White light
Lamp bar is installed in framework, and white light lamp bar is located at the side of lamella lucida, now mainly use the light that white light lamp bar sends from
Side enters lamella lucida, and running into hand-written thin film during multiple total reflection in lamella lucida using light can send out light scattering
Light principle, realizes luminescence display.Power supply is electrically connected with white light lamp bar, is embodied as white light lamp bar and powers.To sum up can obtain: the present invention's
The hand-written blackboard of thin film, it is not only simple in structure, and cost is low, more easily promotion and application.
Second, the hand-written blackboard of the thin film of the present invention, when using, the pen-like tool made with finger or any solid material
Can write, without Special writing pen.
Third, the hand-written blackboard of the thin film of the present invention, writing is shown as continuous person's handwriting, high resolution, and no pulse flashes.Effectively
Avoiding adopting existing electronic blackboard pixel display mode more, writing is discontinuous, and for pulse scanning display, resolution and easypro
The all dissatisfactory problem of appropriateness.
Fourth, the hand-written blackboard of the thin film of the present invention, ways of writing is identical with the writing on the blackboard mode of traditional blackboard, Yi Pu
And, traditional blackboard can be replaced completely.
Brief description
For ease of explanation, the present invention is embodied as and accompanying drawing is described in detail by following.
Fig. 1 is the structural representation of embodiment one.
Fig. 2 is present invention writing displaying principle figure when using.
Fig. 3 is the structural representation of embodiment two.
It is as follows that in figure indicates correspondence:
The hand-written thin film of 1-；2- lamella lucida；
3- white light lamp bar；4- framework；
5- color static pad pasting；6- pen-like tool；
8- light.
Specific embodiment
In order to technical scheme is explained further, the present invention is explained in detail below by specific embodiment
State.
Embodiment one
As shown in Figure 1-2, the hand-written blackboard of the thin film of the present embodiment, includes framework 4, white light lamp bar 3 and lamella lucida 2, should
The hand-written blackboard of thin film also includes hand-written thin film 1 and color static pad pasting 5, and the power supply (figure for described white light lamp bar 3 power supply
In be not given), described lamella lucida 2, hand-written thin film 1 and color static pad pasting 5 are sequentially arranged in described framework 4 from inside to outside；
Gap is left, described white light lamp bar 3 is installed in described framework 4 between described hand-written thin film 1 and the surface of described lamella lucida 2,
Described white light lamp bar 3 is located at the side of described lamella lucida 2, and described power supply is electrically connected with described white light lamp bar 3；Described framework 4 is
Framework 4 with black floor.
In above-mentioned, described framework 4 is rectangular, and this framework 4 can be made up of any materials.
In the present invention, as shown in Figure 1-2, the inner side of described framework 4 is mounted on described white light lamp bar 3, described white light
Bar 3 and described lamella lucida 2 are in approximately the same plane.
It is preferred that leaving gap between described hand-written thin film 1 and described color static pad pasting 5, this gap is very in the present invention
Little, it is pressed during deformation and can contact to realize the two.
In the present invention, as shown in Figure 1-2 it is preferred that described hand-written thin film 1 is that two-sided smooth translucent milky white pet is thin
Film.Described lamella lucida 2 is two-sided smooth all-transparent pmma plate.Described white light lamp bar 3 is white light LED lamp bar or the trichroism led of rgb
Combination white light lamp bar 3, needs exist for further illustrating: in above-mentioned, hand-written thin film 1 selects pet thin film, and lamella lucida 2 is selected
Pmma plate, when being to write, electrostatic that pet thin film and the friction of pmma plate phase produce can keep at pressing hand-written thin film 1 and
Lamella lucida 2 will not be separated.
The hand-written blackboard of thin film that the present invention is expanded on further is how to show that the principle of colored writing is as follows:
Under normal conditions, lamella lucida 2 and hand-written thin film 1 are separated by air layer, and hand-written thin film 1 does not light, and because framework 4
With black floor, the hand-written blackboard of thin film of the present invention looks like in black.
Color static pad pasting 5 is provided with framework 4, when using, when the form of a stroke or a combination of strokes work made using any solid material
When tool 6 writes on the hand-written blackboard of thin film of the present invention, it is recessed to hand-written thin film 1 that pen-like tool 6 extrudes color static pad pasting 5 first
Fall into, and then hand-written thin film 1 is recessed, hand-written thin film 1 and lamella lucida 2 mutually rub the electrostatic of generation, just because of the work of electrostatic
With at pressing, hand-written thin film 1 can be held against in lamella lucida 2, will not separate.Because color static pad pasting 5 is thin with hand-written
Gap very little between film 1, can contact when the two is pressed, and the pressing on color static pad pasting 5 after pressing terminates
Place also can be close on hand-written thin film 1 due to the effect of electrostatic.And the light 8 that white light lamp bar 3 sends enters lamella lucida from side
2, run into hand-written thin film 1 using light 8 during multiple total reflection in lamella lucida 2, and then light 8 scattering is sent, realize
Luminescence display, presents white writing.Now, color static pad pasting 5 is pasted onto at white writing, then writing is changed into corresponding coloured silk
Color, realizes the colored writing of display.
It should be understood that the hand-written blackboard of the thin film of the present invention, include framework 4, white light lamp bar 3, lamella lucida 2, hand-written
Thin film 1 and color static pad pasting 5, and the power supply powered for described white light lamp bar.Framework 4 is the framework with black floor
4, lamella lucida 2, hand-written thin film 1 and color static pad pasting 5 are sequentially arranged in framework 4 from inside to outside；Hand-written thin film 1 and lamella lucida
Leave gap between 2 surface, separated with lamella lucida 2 air by hand-written thin film 1 under achievable normality, hand-written thin film 1 with transparent
Plate 2 does not contact, and does not show white, and the hand-written blackboard of this thin film looks like in black.White light lamp bar 3 is installed in framework 4, white light
Lamp bar 3 is located at lamella lucida 2 side, now mainly uses the light 8 that white light lamp bar 3 sends and enters lamella lucida 2 from side, utilizes
Light 8 runs into hand-written thin film 1 during multiple total reflection in lamella lucida 2 and light 8 can be scattered principle of luminosity, realizes luminous
Display.Power supply is electrically connected with white light lamp bar, is embodied as white light lamp bar and powers.To sum up can obtain: the hand-written blackboard of thin film of the present invention, its
It is not only simple in structure, and cost is low, more easily promotion and application.
Embodiment two
The present embodiment and embodiment one main difference is that as Figure 2-3, described lamella lucida 2 and described hand-written
Thin film 1 is sequentially arranged in described framework 4 from inside to outside.That is: in framework 4 hand-written thin film 1 opposite side do not install colored quiet
Electric pad pasting 5.
The hand-written blackboard of thin film that the present invention is expanded on further is how to show that the principle of colored writing is as follows:
Under normal conditions, lamella lucida 2 and hand-written thin film 1 are separated by air layer, and hand-written thin film 1 does not light, and because framework 4
It is with black floor, the hand-written blackboard of thin film of the present invention looks like in black.
Color static pad pasting 5 is not installed on framework 4, when using, when the form of a stroke or a combination of strokes work made using any solid material
Tool 6 when hand-written thin film 1 writes, because written pressing makes hand-written thin film 1 be recessed, mutually rub by hand-written thin film 1 and lamella lucida 2
Wipe the electrostatic producing, just because of the effect of electrostatic, at pressing, hand-written thin film 1 can be held against in lamella lucida 2, Bu Huifen
Open.And the light 8 that sends of white light lamp bar 3 enters lamella lucida 2 from side, using light 8 in lamella lucida 2 multiple total reflection process
In run into hand-written thin film 1 so that by light 8 scattering send, realize luminescence display, present white writing.
Needing exist for special instruction is: the hand-written blackboard of thin film of the present invention, when using, with finger or any solid material
The pen-like tool 6 made can be write, without Special writing pen.Ways of writing is identical with the writing on the blackboard mode of traditional blackboard,
Easily popularize, traditional blackboard can be replaced completely.Writing is shown as continuous person's handwriting, high resolution, and no pulse flashes.It is effectively prevented from existing
Have electronic blackboard more and adopt pixel display mode, writing is discontinuous, and show, resolution and comfort level are not for pulse scanning
Enough preferable problems.
The hand-written blackboard of thin film of the present invention, including following installation steps: the first step, install transparent in described framework 4
Plate 2.Second step, is respectively mounted white light lamp bar 3 on the side wall of described framework 4, and described white light lamp bar 3 is existed with described lamella lucida 2
In approximately the same plane.3rd step, installs hand-written thin film 1 in described framework 4, and described hand-written thin film 1 and described lamella lucida 2 it
Between leave gap.4th step, installs color static pad pasting 5 in described framework 4, and described color static pad pasting 5 and described handss
Write and leave gap between thin film 1.5th step, described white light lamp bar 3 is connected with described power supply.The thin film completing the present invention is hand-written
The installation of blackboard.
The product form of above-described embodiment and schema the non-limiting present invention and style, any art common
Suitable change or modification that technical staff is done to it, all should be regarded as the patent category without departing from the present invention.
Claims (6)
1. the hand-written blackboard of a kind of thin film, include framework, white light lamp bar and lamella lucida it is characterised in that: the hand-written blackboard of this thin film
Also include hand-written thin film and the power supply powered for described white light lamp bar, described lamella lucida and described hand-written thin film from inside to outside according to
Secondary it is arranged in described framework；Gap is left, described white light lamp bar peace between described hand-written thin film and the surface of described lamella lucida
It is loaded in described framework, described white light lamp bar is located at the side of described lamella lucida, described power supply is electrically connected with described white light lamp bar；
Described framework is the framework with black floor.
2. a kind of hand-written blackboard of thin film according to claim 1 it is characterised in that: the inner side of described framework is respectively mounted
State white light lamp bar, described white light lamp bar and described lamella lucida are in approximately the same plane.
3. a kind of hand-written blackboard of thin film according to claim 2 it is characterised in that: the hand-written blackboard of this thin film also includes colour
Electrostatic pad pasting, described color static pad pasting is installed on the outside being located at described hand-written thin film in described framework；And it is described hand-written thin
Gap is left between film and described color static pad pasting.
4. the hand-written blackboard of a kind of thin film according to any one of claim 1-3 it is characterised in that: described lamella lucida is double
The smooth all-transparent pmma plate in face.
5. the hand-written blackboard of a kind of thin film according to any one of claim 1-3 it is characterised in that: described hand-written thin film is
Two-sided smooth translucent milky white pet thin film.
6. the hand-written blackboard of a kind of thin film according to any one of claim 1-3 it is characterised in that: described white light lamp bar is
White light LED lamp bar or rgb trichroism led combination white light lamp bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857553.8A CN106346983A (en) | 2016-09-28 | 2016-09-28 | Film type handwriting blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610857553.8A CN106346983A (en) | 2016-09-28 | 2016-09-28 | Film type handwriting blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106346983A true CN106346983A (en) | 2017-01-25 |
Family
ID=57865414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610857553.8A Pending CN106346983A (en) | 2016-09-28 | 2016-09-28 | Film type handwriting blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106346983A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1687458A1 (en) * | 1988-07-11 | 1991-10-30 | Московский станкоинструментальный институт | A way of correcting entries in writing-pad |
| CN2216466Y (en) * | 1995-01-21 | 1996-01-03 | 甘培宏 | Repeatedly-usable writing board |
| DE29812869U1 (en) * | 1998-07-20 | 1998-10-01 | Martin Helmut | Multi-layer information board |
| US20050147956A1 (en) * | 2004-01-06 | 2005-07-07 | Charles Widman | Erasable document marking apparatus |
| JP2006142792A (en) * | 2004-11-16 | 2006-06-08 | Kiyoshi Kawasaki | Blackboard |
| EP1992496A1 (en) * | 2007-05-18 | 2008-11-19 | Lyttron Technologies GmbH | Writing board with EL illumination element and manufacturing method with application |
| CN101311002A (en) * | 2007-05-25 | 2008-11-26 | 富士迈半导体精密工业（上海）有限公司 | Writing board |
| CN203864250U (en) * | 2014-03-18 | 2014-10-08 | 杨荣实 | Static wall poster for office work and teaching |
| CN204236072U (en) * | 2014-10-29 | 2015-04-01 | 斯迪克新型材料（江苏）有限公司 | Exempt from the environmental protection of wiping type to write screen |
| CN204236077U (en) * | 2014-10-29 | 2015-04-01 | 斯迪克新型材料（江苏）有限公司 | Exempt from wiping board |
| CN204322835U (en) * | 2014-12-15 | 2015-05-13 | 季晓煜 | Dustless Water-free environment-friendlyurinal Luminous blackboard |
| CN204354655U (en) * | 2014-12-31 | 2015-05-27 | 武汉市腾亚科技有限公司 | A kind of mimicry blackboard |
| CN204414905U (en) * | 2014-12-23 | 2015-06-24 | 重庆市秀峰教学设备有限公司 | Overlay film clipboard |
| CN205058952U (en) * | 2015-09-18 | 2016-03-02 | 广州市华惠材料科技有限公司 | Novel repeatedly usable handwriting pad |
| CN205220144U (en) * | 2015-12-06 | 2016-05-11 | 吴滨 | Inkless blank of writing |
-
2016
- 2016-09-28 CN CN201610857553.8A patent/CN106346983A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1687458A1 (en) * | 1988-07-11 | 1991-10-30 | Московский станкоинструментальный институт | A way of correcting entries in writing-pad |
| CN2216466Y (en) * | 1995-01-21 | 1996-01-03 | 甘培宏 | Repeatedly-usable writing board |
| DE29812869U1 (en) * | 1998-07-20 | 1998-10-01 | Martin Helmut | Multi-layer information board |
| US20050147956A1 (en) * | 2004-01-06 | 2005-07-07 | Charles Widman | Erasable document marking apparatus |
| JP2006142792A (en) * | 2004-11-16 | 2006-06-08 | Kiyoshi Kawasaki | Blackboard |
| EP1992496A1 (en) * | 2007-05-18 | 2008-11-19 | Lyttron Technologies GmbH | Writing board with EL illumination element and manufacturing method with application |
| CN101311002A (en) * | 2007-05-25 | 2008-11-26 | 富士迈半导体精密工业（上海）有限公司 | Writing board |
| CN203864250U (en) * | 2014-03-18 | 2014-10-08 | 杨荣实 | Static wall poster for office work and teaching |
| CN204236072U (en) * | 2014-10-29 | 2015-04-01 | 斯迪克新型材料（江苏）有限公司 | Exempt from the environmental protection of wiping type to write screen |
| CN204236077U (en) * | 2014-10-29 | 2015-04-01 | 斯迪克新型材料（江苏）有限公司 | Exempt from wiping board |
| CN204322835U (en) * | 2014-12-15 | 2015-05-13 | 季晓煜 | Dustless Water-free environment-friendlyurinal Luminous blackboard |
| CN204414905U (en) * | 2014-12-23 | 2015-06-24 | 重庆市秀峰教学设备有限公司 | Overlay film clipboard |
| CN204354655U (en) * | 2014-12-31 | 2015-05-27 | 武汉市腾亚科技有限公司 | A kind of mimicry blackboard |
| CN205058952U (en) * | 2015-09-18 | 2016-03-02 | 广州市华惠材料科技有限公司 | Novel repeatedly usable handwriting pad |
| CN205220144U (en) * | 2015-12-06 | 2016-05-11 | 吴滨 | Inkless blank of writing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202257492U (en) | Electronic whiteboard | |
| CN106346983A (en) | Film type handwriting blackboard | |
| CN205354384U (en) | Multi -functional english teaching show board | |
| CN207128450U (en) | A kind of board of education | |
| CN203225026U (en) | Touch control intelligent blackboard | |
| CN207094328U (en) | A kind of adjustable calligraphy practicing device of brightness | |
| CN102968955B (en) | A kind of dynamic display device | |
| CN207336987U (en) | A kind of display device for being integrated with bistable liquid crystal film | |
| CN214335968U (en) | Multi-functional electronic blackboard for teaching | |
| CN201456750U (en) | Multifunctional blackboard | |
| CN101947878B (en) | Transfer printing method of LED light source black oil | |
| CN201446806U (en) | Multifunctional fluorescent handwriting board | |
| CN205838239U (en) | A kind of electric ink elevator runs display device | |
| CN201304807Y (en) | Glass blackboard | |
| CN202806068U (en) | Chinese teaching back light unit | |
| CN2670130Y (en) | Electronic blackboard | |
| CN204322835U (en) | Dustless Water-free environment-friendlyurinal Luminous blackboard | |
| CN206179437U (en) | Pass through electrical apparatus display panel and electrical apparatus that show facial mask, have it | |
| CN216161266U (en) | Painting and calligraphy tracing board | |
| CN205983429U (en) | Multifunctional curtain | |
| CN1631684A (en) | Multifunctional frame type fluorescent writing board | |
| CN2785871Y (en) | Illuminant writing board | |
| CN103902072B (en) | Writing device and its light-emitting diode display panel and lettering pen | |
| CN219871844U (en) | Backlight display device | |
| CN215904228U (en) | Picture frame with light source and decorative picture using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170125 |
|
| WD01 | Invention patent application deemed withdrawn after publication |