CN216527114U

CN216527114U - Liquid crystal handwriting device

Info

Publication number: CN216527114U
Application number: CN202123045609.5U
Authority: CN
Inventors: 张晓亮; 叶文新
Original assignee: Shenzhen Do True Scientific Research Co ltd
Current assignee: Shenzhen Do True Scientific Research Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-13
Anticipated expiration: 2031-12-06

Abstract

The application provides a liquid crystal handwriting device, which comprises a liquid crystal handwriting film, wherein the liquid crystal handwriting film is provided with a writing area and a control area positioned outside the writing area, the writing area comprises a plurality of lines of writing areas, and each line of writing area is used for a user to write so as to generate corresponding handwriting; the control area is provided with a plurality of pairs of contacts, each pair of contacts comprises a positive contact and a negative contact, each pair of contacts corresponds to one line or a plurality of lines of writing areas, each pair of contacts is used for being conducted with an external power supply and receiving voltage input by the external power supply, and the voltage is used for clearing handwriting of the writing areas corresponding to the corresponding pair of contacts. According to the liquid crystal handwriting device, the erasing of handwriting in different areas or on the whole area on the screen is controlled through the multiple pairs of contacts, the erasing efficiency of the handwriting on the liquid crystal handwriting device is improved, and the use experience of the liquid crystal handwriting device is improved.

Description

Liquid crystal handwriting device

Technical Field

The application relates to the field of liquid crystal handwriting films, in particular to a liquid crystal handwriting device.

Background

In the field of electronic products, liquid crystal handwriting devices are generally used for displaying pictures and handwriting, and a liquid crystal handwriting device for receiving the handwriting and displaying the received handwriting is emerging nowadays. However, in the erasing mode of the liquid crystal handwriting device in the prior art, the existing handwriting on the screen can be erased cleanly by repeatedly moving the liquid crystal handwriting device in a manner of contacting with the appointed position of the screen, and the manual erasing of the liquid crystal handwriting device with a large screen is very inconvenient and laborious, so that the popularization and the application of the liquid crystal handwriting device with the large screen are very unfavorable.

Therefore, how to enable the liquid crystal handwriting device to quickly erase the existing handwriting is a problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The application provides a liquid crystal handwriting device, and the liquid crystal handwriting device controls the erasing of handwriting on different areas or the whole area on a screen through multiple pairs of contacts, so that the erasing efficiency of the liquid crystal handwriting device is improved, and the use experience of the liquid crystal handwriting device is improved.

In a first aspect, an embodiment of the present application provides a liquid crystal handwriting device, where the liquid crystal handwriting device includes a liquid crystal handwriting film, the liquid crystal handwriting film is provided with a writing area and a control area located outside the writing area, the writing area includes multiple lines of writing areas, and each line of writing area is used for a user to write to generate corresponding handwriting; the control area is provided with a plurality of pairs of contacts, each pair of contacts comprises a positive contact and a negative contact, each pair of contacts corresponds to one line or a plurality of lines of writing areas, each pair of contacts is used for being conducted with an external power supply and receiving voltage input by the external power supply, and the voltage is used for clearing handwriting of the writing areas corresponding to the corresponding pair of contacts.

Optionally, the liquid crystal handwriting device further comprises a frame shell, and the liquid crystal handwriting film is installed in the frame shell.

Optionally, the liquid crystal handwriting device further comprises a support for supporting the bezel housing.

Optionally, the liquid crystal handwriting film comprises a front surface and a back surface, and the liquid crystal handwriting device further comprises an explosion-proof base material, wherein the explosion-proof base material is arranged on the back surface.

Optionally, the explosion-proof substrate is a flat plate-like object.

Optionally, the explosion proof substrate is made of a flexible material.

Optionally, a plurality of pairs of touch points are arranged on the front surface of the liquid crystal handwriting film, and the position of each pair of touch points corresponds to a corresponding line of writing area.

Optionally, the plurality of pairs of contacts are arranged in a line.

Optionally, the liquid crystal handwriting device further comprises a clearing device, the clearing device is used for providing an external power supply, the clearing device is provided with a pair of conducting points, and the liquid crystal handwriting film is contacted with the pair of conducting points through the pair of contacts to receive an input voltage of the external power supply.

Optionally, the voltage is 15V-65V.

The liquid crystal handwriting device controls each section of the liquid crystal handwriting film to be powered on or powered off by operating the cleaning device, namely, the handwriting in different areas or the whole area on the screen is erased by controlling a plurality of pairs of contacts, so that the erasing efficiency of the liquid crystal handwriting device is improved, and the use experience of the liquid crystal handwriting device is improved. The liquid crystal handwriting film is transparent when being electrified; the liquid crystal handwriting film is non-transparent when the power is off and is used for recording and displaying handwriting formed by writing operation of a user, the liquid crystal handwriting device can conveniently and quickly erase the handwriting through the operation clearing device, the use experience of the user on the liquid crystal handwriting device is improved, the functionality of the liquid crystal handwriting device is increased, and the competitiveness of the liquid crystal handwriting device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of the application and that other drawings may be derived from the structure shown in the drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic structural diagram of a liquid crystal handwriting device according to a first embodiment of the present application.

Fig. 2 is a schematic view of an internal structure of a liquid crystal handwriting film according to a first embodiment of the present application.

Fig. 3 is a schematic structural diagram of a liquid crystal handwriting device according to a second embodiment of the present application.

Fig. 4 is a schematic structural diagram of a liquid crystal handwriting device according to a third embodiment of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. 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 application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Please refer to fig. 1 in combination, which is a schematic diagram of a liquid crystal handwriting apparatus 100 according to a first embodiment of the present application. The liquid crystal handwriting device 100 comprises a liquid crystal handwriting film 210, a frame shell 240 and a support 230. The liquid crystal handwriting film 100 is fixed in the frame housing 240. The bracket 230 is coupled with the bezel housing 240 for supporting the bezel housing 240. In this embodiment, the liquid crystal handwriting device 100 is a large-sized liquid crystal handwriting device with a liquid crystal handwriting film 210 having a size of about 60 inches, and can be applied to a meeting room or a presentation hall for meeting content presentation or advertisement content presentation. The liquid crystal handwriting film 210 is provided with a writing area 211 and a control area 212 located outside the writing area 211, the writing area includes a plurality of lines of writing areas 11, and each line of writing areas 11 is used for a user to write by hand to generate corresponding handwriting. The control area is provided with a plurality of pairs of contacts 12, each pair of contacts 12 comprising a positive contact 201 and a negative contact 202, each pair of contacts 12 corresponding to one or more rows of writing areas 11. The writing area 11 and each pair of contacts 12 are exposed out of the bezel housing 240. Each pair of contacts 12 is used for being conducted with an external power supply and receiving voltage input by the external power supply, and the voltage is used for clearing handwriting of the writing area 11 corresponding to the corresponding pair of contacts. Referring to fig. 2, a plurality of pairs of touch points 12 are disposed on the front surface 215 of the liquid crystal handwriting film 210, and each pair of touch points 12 corresponds to a corresponding row of writing areas 11. The liquid crystal handwriting device 100 further comprises a clearing device 260, the clearing device 260 is used for providing external power, the clearing device 260 is provided with a pair of conducting points (not shown), and the liquid crystal handwriting film 210 is contacted with the pair of conducting points (not shown) through the pair of contacts 12 to receive an input voltage of the external power. The voltage is 15V-65V. Specifically, the erasing device 260 is a single peripheral electronic device, and the erasing device 260 inputs a voltage of 15V to 65V by directly contacting a pair of contacts 12 of the liquid crystal handwriting film 210 through a pair of conducting points (not shown), so as to control the line writing area 11 in the liquid crystal handwriting film 210 to erase the handwriting.

Please refer to fig. 2 again, which is a schematic diagram of an internal structure of the liquid crystal handwriting film. The liquid crystal handwriting film 210 may use a black matrix film, a semi-transparent matrix film, or a fully-transparent matrix film liquid crystal handwriting film. The liquid crystal handwriting film 210 can be a product with any effect handwriting, any color and any size. The liquid crystal handwriting film 210 includes a first film 2101, a liquid crystal layer 2102, and a second film 2103. First film 2101 includes first substrate 21011 and first conductive layer 21012. The second membrane 2103 includes a second substrate 21031 and a second conductive layer 21032. A liquid crystal layer 2102 is disposed between the first conductive layer 21012 and the second conductive layer 21032. In this embodiment, a positive electrode is led out from the first conductive layer 21012 to the control region 212 to form a first positive contact 201, and a first negative electrode is led out from the second conductive layer 21032 to the control region 212 to form a first negative contact 202. It can be understood that the working principle of the liquid crystal handwriting film 210 is consistent with the existing liquid crystal handwriting film cleaning principle, that is, after the voltage is applied to the electrodes, the liquid crystal layer 2102 is mutually pulled to perform a turning action, and the turning action is changed, so that the intensity of light is changed, and the conductive layer drives the liquid crystal layer 2102 to clean through the voltage. That is, in this embodiment, the liquid crystal handwriting film 210 can be driven to erase by only providing the first positive contact 201 and the first negative contact 202 to receive the driving voltage required for driving the liquid crystal layer 2102 to erase from the external input, so that the voltage driving board circuit required for driving the liquid crystal layer 2102 to erase in the conventional liquid crystal handwriting device can be saved.

Please refer to fig. 3, which is a schematic diagram of a liquid crystal handwriting device 99 according to a second embodiment of the present application. The liquid crystal handwriting device 99 according to the second embodiment is a portable liquid crystal handwriting device having a liquid crystal handwriting film of about 10 inches, and can be used for recording personal information or as a learning note. In addition to the difference in size between the liquid crystal handwriting device 99 and the liquid crystal handwriting device 100 provided in the first embodiment, the liquid crystal handwriting device 99 is also different from the liquid crystal handwriting device 100 provided in the first embodiment in that the size of the bezel housing 240 is correspondingly reduced, and therefore, the stand can be omitted as a handheld liquid crystal handwriting device.

Please refer to fig. 4, which is a schematic diagram of a liquid crystal handwriting device 88 according to a third embodiment. Liquid crystal handwriting device 88 is an attached liquid crystal handwriting device. The liquid crystal handwriting device 88 may be wall mounted, card held. Specifically, in the present embodiment, the liquid crystal handwriting device 88 is different from the liquid

crystal handwriting devices

100 and 99 provided in the first and second embodiments in that the liquid crystal handwriting device 88 includes a liquid crystal handwriting film 210 and an explosion-proof substrate 250 attached to the liquid crystal handwriting film 210. That is, the liquid crystal handwriting device 88 is frameless. Liquid crystal writing film 210 includes a front surface 215 and a back surface 216, with front surface 215 being entirely unobstructed. The explosion-proof substrate 250 is disposed on the back surface 216. In some possible embodiments, the explosion-proof substrate 250 is a flat plate-like object. In some possible embodiments, explosion-proof substrate 250 is made of a flexible material. The back of the explosion-proof substrate 250, which faces away from the liquid crystal handwriting film 250, can be provided with a layer of fixing devices such as an adhesive layer, a sucker, a hook and the like, so that the liquid crystal handwriting device 88 can be hung. In addition, the fixing device can also be an independent fixing seat, and the fixing seat is provided with a slot or a spring plate and the like for clamping the liquid crystal handwriting device 88.

In the embodiment, the liquid crystal handwriting device controls each section of the liquid crystal handwriting film to be powered on or powered off by operating the cleaning device, namely, the handwriting in different areas or the whole area on the screen is erased by controlling a plurality of pairs of contacts, so that the erasing efficiency of the liquid crystal handwriting device is improved, and the use experience of the liquid crystal handwriting device is improved. The liquid crystal handwriting film is transparent when being electrified; the liquid crystal handwriting film is non-transparent when the power is off and is used for recording and displaying handwriting formed by writing operation of a user, the liquid crystal handwriting device can conveniently and quickly erase the handwriting through the operation clearing device, the use experience of the user on the liquid crystal handwriting device is improved, the functionality of the liquid crystal handwriting device is increased, and the competitiveness of the liquid crystal handwriting device is improved.

It will be clear to those skilled in the art that for convenience and brevity of description, specific operations of the above described systems, apparatus and units may be referred to corresponding operations in the above described method embodiments. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, to the extent that such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, it is intended that the present application also encompass such modifications and variations.

The above-mentioned embodiments are only examples of the present invention, and the scope of the claims of the present invention should not be limited by these examples, so that the claims of the present invention should be construed as equivalent and still fall within the scope of the present invention.

Claims

1. The liquid crystal handwriting device is characterized by comprising a liquid crystal handwriting film, wherein the liquid crystal handwriting film is provided with a writing area and a control area positioned outside the writing area, the writing area comprises a plurality of lines of writing areas, and each line of writing areas is used for a user to write so as to generate corresponding handwriting; the control area is provided with a plurality of pairs of contacts, each pair of contacts comprises a positive contact and a negative contact, each pair of contacts corresponds to one line or a plurality of lines of writing areas, each pair of contacts is used for being conducted with an external power supply and receiving voltage input by the external power supply, and the voltage is used for clearing handwriting of the writing areas corresponding to the corresponding pair of contacts.

2. The liquid crystal handwriting device according to claim 1, further comprising a bezel housing, said liquid crystal handwriting film being mounted within said bezel housing.

3. The liquid crystal handwriting apparatus of claim 2, further comprising a support for supporting said bezel housing.

4. The liquid crystal handwriting apparatus according to claim 1, wherein said liquid crystal handwriting film comprises a front side and a back side, said liquid crystal handwriting apparatus further comprising an explosion-proof substrate, said explosion-proof substrate being disposed on said back side.

5. The liquid crystal handwriting apparatus according to claim 4, characterized in that said explosion-proof substrate is a flat plate-like object.

6. The liquid crystal handwriting apparatus according to claim 4, characterized in that said explosion-proof substrate is made of a flexible material.

7. The liquid crystal handwriting apparatus according to claim 3, wherein said plurality of pairs of touch points are arranged on the front surface of said liquid crystal handwriting film, each pair of touch points being located corresponding to a line of writing area.

8. The liquid crystal handwriting apparatus according to claim 1, wherein said plurality of pairs of contacts are arranged in a line.

9. The liquid crystal handwriting device according to claim 1, further comprising a clearing device for providing said external power, said clearing device having a pair of conducting points, said liquid crystal handwriting film contacting said pair of conducting points through a pair of contacts to receive voltage input from external power.

10. The liquid crystal handwriting apparatus of claim 9, wherein said voltage is 15-65V.