CN113077720A - Handwriting board light source assembly and display device - Google Patents

Handwriting board light source assembly and display device Download PDF

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Publication number
CN113077720A
CN113077720A CN202110401909.8A CN202110401909A CN113077720A CN 113077720 A CN113077720 A CN 113077720A CN 202110401909 A CN202110401909 A CN 202110401909A CN 113077720 A CN113077720 A CN 113077720A
Authority
CN
China
Prior art keywords
light source
display screen
handwriting
handwriting board
outer shell
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
Application number
CN202110401909.8A
Other languages
Chinese (zh)
Inventor
许丽萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Zhongsheng Zhuoxin Photoelectric Technology Co ltd
Original Assignee
Dongguan Zhongsheng Zhuoxin Photoelectric Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan Zhongsheng Zhuoxin Photoelectric Technology Co ltd filed Critical Dongguan Zhongsheng Zhuoxin Photoelectric Technology Co ltd
Priority to CN202110401909.8A priority Critical patent/CN113077720A/en
Publication of CN113077720A publication Critical patent/CN113077720A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20981Liquid coolant without phase change

Abstract

The invention discloses a handwriting board light source assembly and a display device, and relates to the technical field of handwriting boards, the handwriting board light source assembly and the display device comprise a handwriting board outer shell, wherein a display screen is installed on one side of the handwriting board outer shell, a sealing gasket is installed at the position, connected with the display screen, of the inner side of the handwriting board outer shell, a display screen protective pressing plate is installed on one side of the handwriting board outer shell, the display screen protective pressing plate is installed on the rear side of the display screen, mounting plates are symmetrically installed on two sides of the display screen protective pressing plate, and a fixing screw; the back shell is installed to the outside block of handwriting pad shell body, the installation card post is all installed to the equal symmetry of upper surface and the lower surface of handwriting pad shell body. Through pressing down the installation card post, simultaneously, compress the spring, then make handwriting pad shell body and backshell looks block, when the installation card post removed to calorie hole department, the installation card post was through under the effect of spring force for the installation card post upwards slides, and is closing with the card hole through the installation card post.

Description

Handwriting board light source assembly and display device
Technical Field
The invention relates to the technical field of handwriting boards, in particular to a handwriting board light source assembly and a display device.
Background
With the development of science and technology, electronic paper devices similar to paper are gradually appeared, which can realize writing of characters or patterns through pressure sense, for example, cholesteric liquid crystal handwriting boards, which present handwriting due to pressure, and maintain the handwriting without power consumption, only an electric field needs to be applied when screen content is cleared, so that the power consumption is extremely low, and the handwriting boards are not dazzling, have very low harm to eyes, and are very suitable for being used as handwriting boards.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a handwriting board light source assembly and a display device, and solves the problems that most existing handwriting boards are not provided with light source assemblies, so that the display effect is poor when the design is used for watching written contents, and the sealing effect of the existing handwriting board display device after installation is general, and more dust is easily adsorbed on the surface of an internal display device.
In order to achieve the purpose, the invention is realized by the following technical scheme: a handwriting board light source assembly and a display device comprise a handwriting board outer shell, wherein a display screen is installed on one side of the handwriting board outer shell, a sealing gasket is installed on the inner side of the handwriting board outer shell, which is located at the position where the handwriting board outer shell is connected with the display screen, a display screen protective pressing plate is installed on one side of the handwriting board outer shell, which is located on the rear side of the display screen, mounting plates are symmetrically installed on two sides of the display screen protective pressing plate, and a fixing screw is installed on one side face of each mounting plate; the backshell is installed to the outside block of handwriting pad shell body, the installation card post is installed to the equal symmetry of upper surface and the lower surface of handwriting pad shell body, the one end of installation card post is fixed with the clamp plate, the spring is all installed to the below that the inside of handwriting pad shell body is located the clamp plate.
As a further scheme of the invention: the handwriting board comprises a handwriting board outer shell, wherein a display screen is arranged on one side of the handwriting board outer shell, a sealing gasket is arranged on the position, connected with the display screen, of the inner side of the handwriting board outer shell, a display screen protection pressing plate is arranged on the rear side of the display screen on one side of the handwriting board outer shell, mounting plates are symmetrically arranged on two sides of the display screen protection pressing plate, and a fixing screw is arranged on one side of each mounting plate; the backshell is installed to the outside block of handwriting pad shell body, the installation card post is installed to the equal symmetry of upper surface and the lower surface of handwriting pad shell body, the one end of installation card post is fixed with the clamp plate, the spring is all installed to the below that the inside of handwriting pad shell body is located the clamp plate.
As a still further scheme of the invention: the sealing gasket is made of rubber, and the thickness of the sealing gasket is three millimeters.
As a still further scheme of the invention: a side of the mounting panel is located and has seted up the screw groove with the corresponding department of set screw, the size in screw groove is greater than set screw's size, the inboard in screw groove is located and has seted up the round hole with the corresponding department of set screw, and the internal diameter of round hole is greater than set screw's external diameter, a side of handwriting pad shell body is located and all sets up threaded hole with the corresponding department of set screw, set screw and screw hole looks adaptation, set screw is threaded connection with the handwriting pad shell body.
As a still further scheme of the invention: the display screen protection clamp plate is a transparent acrylic material, the handwriting pad shell body is a plastic material, the upper surface and the lower surface of back shell are located and all seted up the card hole with the corresponding department of installation card post, the installation card post has card hole looks adaptation.
As a still further scheme of the invention: one side of the light source assembly plate is provided with a light source assembly heat dissipation area, the inside of the light source assembly plate is located and is provided with a heat dissipation cavity corresponding to the heat dissipation area of the light source assembly, the inside of the heat dissipation cavity is provided with a heat dissipation pipe, a light source mounting groove is formed in the other side of the light source assembly plate, an inclined inner wall is formed around the light source mounting groove, and light refraction patches are attached to the inclined inner wall.
As a still further scheme of the invention: the radiating pipe is a zigzag pipeline, the interior of the radiating pipe is communicated, and the interior of the radiating pipe is filled with cooling liquid.
As a still further scheme of the invention: the angle of inclination of slant inner wall is sixty degrees, the light refraction paster is a metal reflecting material, the front surface mounting of light source module board has the USB port.
As a still further scheme of the invention: two light source mounting panels are no less than to inside one side fixed mounting of light source mounting groove, and the light source mounting panel is located inside one side of light source mounting groove and is linear arrangement, two LED light sources are no less than to a side welding of light source mounting panel, and the LED light source is located one side of light source mounting panel and is the linear arrangement.
Advantageous effects
The invention provides a handwriting board light source assembly and a display device. Compared with the prior art, the method has the following beneficial effects:
1. the utility model provides a handwriting pad light source subassembly and display device, is through pressing installation card post, simultaneously, compresses the spring, then makes handwriting pad shell body and backshell looks block, when the installation card post removes to calorie of hole department, the installation card post passes through under the effect of spring force for the installation card post upwards slides, and is closing mutually with the card hole through the installation card post, and then fixes handwriting pad shell body and backshell, makes this design installation and dismantlement convenience more.
2. The utility model provides a handwriting pad light source subassembly and display device, cools down this design through cooling tube and the inside coolant liquid of cooling tube, has improved inside electron device's life, simultaneously, gives out light through the LED light source, and the light source is to penetrating display screen protection clamp plate and penetrating to the display screen, and the light source passes through the abundant refraction of light refraction paster, avoids the light source to scattering all around, reduces the waste of light source.
Drawings
FIG. 1 is a first perspective structural view of a light source assembly and a display device of a tablet according to the present invention;
FIG. 2 is an enlarged schematic view of a display device and a light source assembly of a tablet according to the present invention;
FIG. 3 is a cross-sectional view of the inside of a light source assembly and a display device of a tablet according to the present invention;
FIG. 4 is a second perspective structural view of a display device and a light source assembly of a tablet according to the present invention;
FIG. 5 is a cross-sectional view of a handwriting pad light source assembly and a handwriting pad outer casing of a display device according to the present invention;
fig. 6 is an enlarged schematic view of a handwriting board light source assembly and a display device at a position B according to the present invention.
In the figure: 1. a handwriting pad outer shell; 2. a display screen mounting groove; 3. sealing gaskets; 4. a display screen; 5. a threaded hole; 6. a display screen protection pressing plate; 7. a light source module board; 8. a light source assembly heat dissipation area; 9. mounting a plate; 10. a set screw; 11. a screw slot; 12. a circular hole; 13. a heat dissipation cavity; 14. a radiating pipe; 15. a light source mounting groove; 16. a light source mounting plate; 17. an LED light source; 18. an oblique inner wall; 19. a light refraction patch; 20. a rear housing; 21. installing a clamping column; 22. a clamping hole; 23. a USB port; 24. pressing a plate; 25. a spring.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the invention, and further, the terms "first", "second", etc., are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more of such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a handwriting board light source assembly and a display device, wherein the handwriting board light source assembly comprises: the handwriting board comprises a handwriting board outer shell 1, wherein a display screen 4 is arranged on one side of the handwriting board outer shell 1, a sealing gasket 3 is arranged at the position, connected with the display screen 4, of the inner side of the handwriting board outer shell 1, a display screen protection pressing plate 6 is arranged on one side of the handwriting board outer shell 1 and behind the display screen 4, mounting plates 9 are symmetrically arranged on two sides of the display screen protection pressing plate 6, and fixing screws 10 are arranged on one side of each mounting plate 9; the back shell 20 is installed in the outside block of handwriting pad shell body 1, and the installation card post 21 is all installed to the equal symmetry of upper surface and the lower surface of handwriting pad shell body 1, and the one end of installation card post 21 is fixed with clamp plate 24, and the inside of handwriting pad shell body 1 is located the below of clamp plate 24 and all installs spring 25.
In this embodiment, a side of handwriting pad outer casing 1 is located and has seted up display screen mounting groove 2 with display screen 4 corresponding department, display screen 4 and 2 looks adaptations of display screen mounting groove, display screen 4 is sliding connection with handwriting pad outer casing 1, erection clamp post 21 is sliding connection with handwriting pad outer casing 1, handwriting pad outer casing 1's inside is located and has seted up the mounting groove with the corresponding department of clamp plate 24, and mounting groove and 24 looks adaptations of clamp plate, clamp plate 24's external diameter is greater than the external diameter of erection clamp post 21, when installation and dismantlement, through with handwriting pad outer casing 1 with backshell 20 can, convenience more.
In this embodiment, seal gasket 3 is a rubber material, and seal gasket 3's thickness is three millimeters, when using, seals display screen 4 through seal gasket 3, prevents that display screen 4 department from adsorbing more dust.
In this embodiment, a side of the mounting plate 9 is located at a position corresponding to the fixing screw 10 and has a screw slot 11, the size of the screw slot 11 is greater than the size of the fixing screw 10, the inner side of the screw slot 11 is located at a position corresponding to the fixing screw 10 and has a round hole 12, and the inner diameter of the round hole 12 is greater than the outer diameter of the fixing screw 10, a side of the outer casing 1 of the tablet is located at a position corresponding to the fixing screw 10 and has a threaded hole 5, the fixing screw 10 is matched with the threaded hole 5, the fixing screw 10 is in threaded connection with the outer casing 1 of the tablet, when the tablet is mounted, the display screen protective pressing plate 6 can be fixed through the fixing screw 10, and.
In this embodiment, display screen protection clamp 6 is a transparent ya keli material, and handwriting pad shell body 1 is a plastics material, and the upper surface and the lower surface of backshell 20 are located and all have seted up card hole 22 with the corresponding department of installation card post 21, and installation card post 21 has card hole 22 looks adaptation, when using, can absorb the back transmission through display screen protection clamp 6 to the light source for the light source is gentler, is favorable to the protection of eyes.
In this embodiment, including light source module board 7, a side of light source module board 7 is provided with light source module radiating area 8, and the inside of light source module board 7 is located and has offered heat dissipation chamber 13 with the corresponding department of light source module radiating area 8, and the internally mounted of heat dissipation chamber 13 has cooling tube 14, and light source mounting groove 15 has been offered to the another side of light source module board 7, and all seted up oblique inner wall 18 around light source mounting groove 15, and oblique inner wall 18 department has all laminated light refraction paster 19.
In this embodiment, the cooling tube 14 is zigzag type pipeline, and the inside of cooling tube 14 is linked together, and the inside packing of cooling tube 14 has the coolant liquid, and when using, can dispel the heat to this design inside through cooling tube 14, has improved the use experience and the life-span of this design.
In this embodiment, the angle of inclination of slant inner wall 18 is sixty degrees, and light refraction paster 19 is a metal reflecting material, and the front surface mounting of light source module board 7 has USB port 23, when using, carries out abundant refraction to the light source through light refraction paster 19, has improved the light source utilization efficiency of this design greatly.
In this embodiment, light source mounting plate 16 is no less than two to inside one side fixed mounting of light source mounting groove 15, and light source mounting plate 16 is located inside one side of light source mounting groove 15 and is linear arrangement, and two LED light sources 17 are no less than to the side welding of light source mounting plate 16, and LED light source 17 is located one side of light source mounting plate 16 and is linear arrangement, and when using, give out light through LED light source 17, and then make the display effect of display screen 4 department better.
The working principle of the invention is as follows: when the design is installed, the display screen 4 is slidably installed at the sealing gasket 3 from the display screen installation groove 2 of the handwriting board outer shell 1, the display screen 4 is sealed through the sealing gasket 3 to prevent external dust from entering the interior, then the display screen protective pressing plate 6 and the handwriting board outer shell 1 are fixed through the threaded rotation of the fixing screw 10 and the threaded hole 5 at the handwriting board outer shell 1, and further the display screen 4 is fixed, when the handwriting board, according to needs, can be through pressing installation card post 21, simultaneously, compress spring 25, then make handwriting pad outer casing 1 and backshell 20 looks block, when installation card post 21 removes to calorie hole 22 department, installation card post 21 passes through under the effect of spring 25 elasticity, make installation card post 21 upwards slide, it is closing mutually with calorie hole 22 through installation card post 21, and then fix handwriting pad outer casing 1 and backshell 20, make this design installation and dismantle convenience more.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The display device of the handwriting board is characterized by comprising a handwriting board outer shell (1), wherein a display screen (4) is installed on one side of the handwriting board outer shell (1), a sealing gasket (3) is installed on the position, connected with the display screen (4), of the inner side of the handwriting board outer shell (1), a display screen protective pressing plate (6) is installed on one side of the handwriting board outer shell (1) and located on the rear side of the display screen (4), mounting plates (9) are symmetrically installed on two sides of the display screen protective pressing plate (6), and a fixing screw (10) is installed on one side face of each mounting plate (9);
backshell (20) are installed to the outside block of handwriting pad shell body (1), installation card post (21) are installed to the equal symmetry of upper surface and the lower surface of handwriting pad shell body (1), the one end of installation card post (21) is fixed with clamp plate (24), spring (25) are all installed to the below that the inside of handwriting pad shell body (1) is located clamp plate (24).
2. The display device of the handwriting board according to claim 1, wherein a display screen mounting groove (2) is formed in a position, corresponding to the display screen (4), of one side face of the handwriting board outer shell (1), the display screen (4) is matched with the display screen mounting groove (2), the display screen (4) is in sliding connection with the handwriting board outer shell (1), the installation clamping column (21) is in sliding connection with the handwriting board outer shell (1), a mounting groove is formed in a position, corresponding to the pressing plate (24), of the inner portion of the handwriting board outer shell (1), the mounting groove is matched with the pressing plate (24), and the outer diameter of the pressing plate (24) is larger than the outer diameter of the installation clamping column (21).
3. A display device of a tablet according to claim 1, characterised in that the sealing gasket (3) is of a rubber material, the thickness of the sealing gasket (3) being three millimetres.
4. The display device of the handwriting board according to claim 1, wherein a screw groove (11) is formed in a position, corresponding to the fixing screw (10), of one side surface of the mounting plate (9), the size of the screw groove (11) is larger than that of the fixing screw (10), a round hole (12) is formed in a position, corresponding to the fixing screw (10), of the inner side of the screw groove (11), the inner diameter of the round hole (12) is larger than the outer diameter of the fixing screw (10), threaded holes (5) are formed in positions, corresponding to the fixing screw (10), of one side surface of the handwriting board outer shell (1), the fixing screw (10) is matched with the threaded holes (5), and the fixing screw (10) is in threaded connection with the handwriting board outer shell (1).
5. The light source assembly and display device of a handwriting board according to claim 1, wherein the protective pressing plate (6) of the display screen is made of a transparent acrylic material, the outer casing (1) of the handwriting board is made of a plastic material, the upper surface and the lower surface of the rear casing (20) are provided with clamping holes (22) at positions corresponding to the mounting clamping columns (21), and the mounting clamping columns (21) are matched with the clamping holes (22).
6. The utility model provides a handwriting pad light source subassembly, a serial communication port, including light source subassembly board (7), a side of light source subassembly board (7) is provided with light source subassembly radiating area (8), the inside of light source subassembly board (7) is located and has seted up heat dissipation chamber (13) with the corresponding department of light source subassembly radiating area (8), and the internally mounted of heat dissipation chamber (13) has cooling tube (14), light source mounting groove (15) have been seted up to the another side of light source subassembly board (7), and all seted up slant inner wall (18) around light source mounting groove (15), slant inner wall (18) department has all laminated light refraction paster (19).
7. The light source assembly of claim 6, wherein the heat pipe (14) is a zigzag pipe, the interior of the heat pipe (14) is connected to the inside of the heat pipe (14), and the interior of the heat pipe (14) is filled with a cooling liquid.
8. The light source assembly of claim 6, wherein the inclined angle of the inclined inner wall (18) is sixty degrees, the light refracting patch (19) is made of a metal reflective material, and the front surface of the light source assembly board (7) is provided with a USB port (23).
9. The light source assembly of the writing pad of claim 6, wherein at least two light source mounting plates (16) are fixedly mounted on one side of the inside of the light source mounting groove (15), and the light source mounting plates (16) are linearly arranged on one side of the inside of the light source mounting groove (15), at least two LED light sources (17) are welded on one side of the light source mounting plate (16), and the LED light sources (17) are linearly arranged on one side of the light source mounting plate (16).
CN202110401909.8A 2021-04-14 2021-04-14 Handwriting board light source assembly and display device Pending CN113077720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110401909.8A CN113077720A (en) 2021-04-14 2021-04-14 Handwriting board light source assembly and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110401909.8A CN113077720A (en) 2021-04-14 2021-04-14 Handwriting board light source assembly and display device

Publications (1)

Publication Number Publication Date
CN113077720A true CN113077720A (en) 2021-07-06

Family

ID=76618675

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110401909.8A Pending CN113077720A (en) 2021-04-14 2021-04-14 Handwriting board light source assembly and display device

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CN (1) CN113077720A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104536639A (en) * 2014-12-19 2015-04-22 惠科电子(深圳)有限公司 Sensing control structure, infrared electromagnetic touch screen and double-contact liquid crystal integrated machine
CN205210465U (en) * 2015-10-14 2016-05-04 深圳市绘王动漫科技有限公司 Screen is write by hand to electromagnetism
CN205540647U (en) * 2016-01-28 2016-08-31 深圳市绘王动漫科技有限公司 Multi -functional several board and handwriting input system
CN107741801A (en) * 2017-10-31 2018-02-27 深圳市华奇数码科技有限公司 A kind of multifunctional write drawing boards
CN207833166U (en) * 2018-02-07 2018-09-07 深圳市宝立创科技有限公司 Liquid crystal handwriting board device
CN209085641U (en) * 2018-12-29 2019-07-09 山东润通科技有限公司 A kind of environment protection digital acquisition transmission instrument
CN209297648U (en) * 2018-12-25 2019-08-23 深圳市易事达电子有限公司 Light source module group and display screen
CN210378356U (en) * 2019-10-14 2020-04-21 大连大学 Music history data show is with combination formula show board
CN112258978A (en) * 2020-11-18 2021-01-22 江苏玄博智能标识科技有限公司 A sign for guiding direction

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104536639A (en) * 2014-12-19 2015-04-22 惠科电子(深圳)有限公司 Sensing control structure, infrared electromagnetic touch screen and double-contact liquid crystal integrated machine
CN205210465U (en) * 2015-10-14 2016-05-04 深圳市绘王动漫科技有限公司 Screen is write by hand to electromagnetism
CN205540647U (en) * 2016-01-28 2016-08-31 深圳市绘王动漫科技有限公司 Multi -functional several board and handwriting input system
CN107741801A (en) * 2017-10-31 2018-02-27 深圳市华奇数码科技有限公司 A kind of multifunctional write drawing boards
CN207833166U (en) * 2018-02-07 2018-09-07 深圳市宝立创科技有限公司 Liquid crystal handwriting board device
CN209297648U (en) * 2018-12-25 2019-08-23 深圳市易事达电子有限公司 Light source module group and display screen
CN209085641U (en) * 2018-12-29 2019-07-09 山东润通科技有限公司 A kind of environment protection digital acquisition transmission instrument
CN210378356U (en) * 2019-10-14 2020-04-21 大连大学 Music history data show is with combination formula show board
CN112258978A (en) * 2020-11-18 2021-01-22 江苏玄博智能标识科技有限公司 A sign for guiding direction

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Application publication date: 20210706

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