CN212181450U - Liquid crystal writing pad - Google Patents

Abstract

The utility model discloses a liquid crystal handwriting pad, through pressing wholly erase the quick content of writing on the liquid crystal handwriting pad of key and all erase and write new content, brought conveniently for the user, in addition the setting of ring body not only can be right wholly erase the key and play effectual dustproof and waterproof effect, can also avoid the user to miss and touch wholly erase the key and then erase the content on the liquid crystal handwriting pad, it is right to have reached the improvement user the purpose that the experience of liquid crystal handwriting pad was felt.

Description

Liquid crystal writing pad

Technical Field

The utility model relates to a handwriting pad technical field especially relates to a liquid crystal handwriting pad.

Background

The liquid crystal writing board is an electronic device which displays characters, patterns and figures by pressure induction, and a user can write by lightly drawing. However, the existing liquid crystal handwriting board has poor experience feeling relative to users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid crystal handwriting pad aims at solving the relatively poor technical problem of the experience sense of the liquid crystal handwriting pad among the prior art for the user.

In order to achieve the above object, the utility model discloses a liquid crystal writing pad, which comprises a first base layer, a first protection layer, a first conductive layer, a cholesteric liquid crystal layer, a second conductive layer, a second protection layer, a second base layer, a shell, a power supply, a pulse circuit board, an integral erasing key and a protection component, wherein the first base layer, the first protection layer, the first conductive layer, the cholesteric liquid crystal layer, the second conductive layer, the second protection layer and the second base layer are sequentially and fixedly connected from top to bottom and are positioned in the shell, the shell is provided with a groove and a placing groove, the placing groove is positioned at one side of the groove, the power supply and the pulse circuit board are both arranged in the shell, the power supply is electrically connected with the pulse circuit board, the pulse circuit board is electrically connected with the first conductive layer and the second conductive layer respectively, the whole erasing key is arranged on the outer side wall of the shell, the whole erasing key is electrically connected with the pulse circuit board, the protection assembly comprises a ring body, an elastic part, a sliding block and an installation cover, the ring body is fixedly connected with the shell, the whole erasing key is sleeved outside the ring body, sliding grooves which are oppositely arranged are formed in the inner side wall of the ring body, each sliding groove is internally provided with the elastic part, two ends of the elastic part are respectively fixedly connected with the ring body and the sliding block, the installation cover is respectively fixedly connected with the two sliding blocks and is positioned at each sliding block, one end of the elastic part is far away from the sliding block, the ring body is sleeved outside the installation cover, and the installation cover is provided with a groove body.

Wherein the first base layer and the second base layer are both made of PET or PC material.

The first conducting layer and the second conducting layer are both composed of one or more of indium tin oxide, nano silver, polythiophene, carbon nano tubes or graphene materials.

The cholesteric liquid crystal layer comprises a first layer, a second layer, a third layer, a fourth layer and a fifth layer, the first layer, the second layer, the third layer, the fourth layer and the fifth layer are sequentially and fixedly connected from left to right, the first layer can reflect orange red light, the second layer can reflect yellow light, the third layer can reflect green light, the fourth layer can reflect blue light, and the fifth layer can reflect purple light.

The liquid crystal writing pad further comprises a cover body, wherein the cover body is rotatably connected with the shell and covers the outer portion of the first base layer.

The liquid crystal writing pad further comprises a buffer pad, wherein the buffer pad is fixedly connected with the cover body and is positioned on one side of the cover body close to the first base layer.

The liquid crystal handwriting board further comprises a first magnetic piece and a second magnetic piece, the first magnetic piece is fixedly connected with the buffer pad and located inside the outer edge of the buffer pad, and the second magnetic piece is fixedly connected with the shell and located inside the groove.

The liquid crystal handwriting board further comprises an anti-seismic sleeve, wherein the anti-seismic sleeve is detachably connected with the shell and is positioned on the outer side wall of the shell.

Wherein, the outer surface wall of the anti-seismic sleeve is provided with anti-skid projections.

The liquid crystal writing board further comprises a writing rod, and the writing rod is detachably connected with the shell and is located inside the placing groove.

The utility model discloses a liquid crystal handwriting pad, wherein the user is in the power not to under the pulse circuit board circular telegram condition, the user writes on the liquid crystal handwriting pad, and then acts on pressure on the first basic unit for the cholesteric liquid crystal layer that corresponds the region presents planar structure, to the selective reflex action of visible light, in order to record the liquid crystal handwriting pad pressure orbit, and then show corresponding writing content, the user can press the whole erasing key after writing, makes the power to the pulse circuit board circular telegram, the pitch of cholesteric liquid crystal layer changes under the effect of applying the electric field, makes the cholesteric liquid crystal layer become the burnt cone structure from planar structure, the writing pressure orbit on the liquid crystal handwriting pad disappears, realizes whole erasing, makes after other users looked over the writing content that finishes, the user is facilitated by quickly erasing all the just written contents by pressing the integral erasing key to write new contents, and by the arrangement of the guard assembly, when a user needs to press the integral erasing key, the user only needs to press the mounting cover to enable the sliding block to move towards the direction of the integral erasing key and then compress the elastic piece, so that the mounting cover moves towards the direction of the integral erasing key, thereby utilizing the mounting cover to support the integral erasing key to press the integral erasing key, wherein the setting of ring body not only can be right the whole key of erasing plays effectual dustproof and waterproof effect, can also avoid the user to miss the whole key of erasing and then erase the content on the liquid crystal handwriting pad to this obtains to have improved the user is right the effect of experience sense of liquid crystal handwriting pad.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural sectional view of the protection assembly of the present invention.

Fig. 2 is a schematic view of the overall structure of the protection assembly of the present invention.

Fig. 3 is a schematic structural diagram of the liquid crystal handwriting board of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the liquid crystal handwriting board of the present invention.

Fig. 5 is a partial structural sectional view of the liquid crystal writing pad of the present invention.

Fig. 6 is a cross-sectional view of the liquid crystal writing pad of the present invention.

Fig. 7 is a circuit diagram of a pulse circuit board according to the present invention.

100-liquid crystal handwriting board, 10-first base layer, 11-first protective layer, 12-first conductive layer, 13-cholesteric liquid crystal layer, 131-first layer, 132-second layer, 133-third layer, 134-fourth layer, 135-fifth layer, 14-second conductive layer, 15-second protective layer, 16-second base layer, 20-shell, 201-groove, 202-placing groove, 21-power supply, 22-pulse circuit board, 24-integral erasing key, 30-cover body, 31-buffer pad, 32-first magnetic part, 33-second magnetic part, 34-cover, 35-antiskid projection, 36-writing rod, 40-protective component, 41-ring body, 411-sliding groove, 42-elastic part, 43-slide block, 44-mounting cover and 441-groove body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 7, the present invention provides a liquid crystal writing pad 100, including a first substrate 10, a first protection layer 11, a first conductive layer 12, a cholesteric liquid crystal layer 13, a second conductive layer 14, a second protection layer 15, a second substrate 16, a casing 20, a power supply 21, a pulse circuit board 22, a bulk erase key 24 and a protection component 40, wherein the first substrate 10, the first protection layer 11, the first conductive layer 12, the cholesteric liquid crystal layer 13, the second conductive layer 14, the second protection layer 15 and the second substrate 16 are fixedly connected from top to bottom and are located inside the casing 20, the casing 20 has a groove 201 and a placement groove 202, the placement groove 202 is located on one side of the groove 201, the power supply 21 and the pulse circuit board 22 are both located inside the casing 20, and the power supply 21 is electrically connected to the pulse circuit board 22, the pulse circuit board 22 is electrically connected to the first conductive layer 12 and the second conductive layer 14, the bulk erase key 24 is disposed on the outer sidewall of the housing 20, the bulk erase key 24 is electrically connected to the pulse circuit board 22, the protection assembly 40 includes a ring 41, an elastic member 42, a slider 43 and a mounting cover 44, the ring 41 is fixedly connected to the housing 20 and is sleeved outside the bulk erase key 24, the inner sidewall of the ring 41 has oppositely disposed sliding slots 411, each sliding slot 411 is provided with the elastic member 42, two ends of the elastic member 42 are fixedly connected to the ring 41 and the slider 43, the mounting cover 44 is fixedly connected to the two sliders 43 and is located at one end of each slider 43 far away from the elastic member 42, and the ring 41 is sleeved outside the mounting cover 44, the mounting cover 44 has a slot 441 thereon.

In this embodiment, the raw materials of the cholesteric liquid crystal layer 13 are mainly made of, by mass percentage, 88.5% of a multistable liquid crystal mixture, 2.1% of an oligomer (2-hydroxy-2-methyl-1-phenyl-1-propanone), 1.2% of n-amyl acrylate, 1.6% of dipentaerythritol hexaacrylate, 1.3% of pentaerythritol triacrylate, 1.1% of 1, 4% of butanediol acrylate, 0.7% of 1, 9% of nonanediol acrylate, 3.1% of hexadecyl methacrylate, 0.2% of a photoinitiator, and 0.2% of tri-n-octylphosphine oxide, and the first base layer 10, the first protective layer 11, the first conductive layer 12, the cholesteric liquid crystal layer 13, the second conductive layer 14, the second protective layer 15, and the second base layer 16 are fixedly connected in this order from top to bottom, the single-grain R2025 button cell can be replaced under the condition that the power supply 21 is not powered, or the single-grain R2025 button cell is charged by using an interactive interface on the side wall of the shell 20, wherein the interactive interface is one of a Mini-USB interface, a Micro-USB interface, a Type-C interface and a Lightning interface, so that a user can conveniently replace the single-grain R2025 button cell under the condition that the single-grain R2025 button cell is not powered, or the storage battery is charged by using a charging wire, and the pulse circuit board 22 is arranged inside the shell 20 and is electrically connected with the power supply 21, the first conducting layer 12 and the second conducting layer 14 respectively.

When a user writes on the liquid crystal handwriting board 100 and further exerts pressure on the first base layer 10 under the condition that the power supply 21 is not powered on the pulse circuit board 22, the cholesteric liquid crystal layer 13 in the corresponding area presents a planar structure, and has selective reflection effect on visible light so as to record a pressure track of the liquid crystal handwriting board 100 and further display corresponding writing contents for other users to check, after other users check the writing contents, the user can press the whole erasing key 24 to enable the power supply 21 to be powered on the pulse circuit board 22 when the liquid crystal handwriting board 100 needs to erase all the written contents and add new contents, the pulse circuit board 22 transmits voltage to the first conductive layer 12 and the second conductive layer 14, and further the thread pitch of the cholesteric liquid crystal layer 13 is changed under the action of an applied electric field, the cholesteric liquid crystal layer 13 is changed from a planar structure to a focal conic structure, the writing pressure track on the liquid crystal handwriting board 100 disappears, and the whole erasing of the writing content is realized. The writing content on the liquid crystal handwriting board 100 can be quickly and completely erased by a user, convenience is brought to the user, the experience feeling of the user is improved, meanwhile, as the cholesteric liquid crystal layer 13 has the characteristic of bistable liquid crystal, when pressure acts on the liquid crystal handwriting board 100, a track can be recorded, under the drive of a certain voltage waveform, the cholesteric liquid crystal layer 13 is recovered to the initial state, and only weak few Neria is needed during the drive refreshing, so that the low power consumption of the product is realized, the experience feeling of the user is improved, meanwhile, the first protective layer 11 and the second protective layer 15 are made of transparent materials, the arrangement of the first protective layer 11 and the second protective layer 15 can improve the light transmittance of the liquid crystal handwriting board 100, simultaneously, the structural strength of the liquid crystal handwriting board 100 can be improved, the product quality is ensured, and the service life of the liquid crystal handwriting board 100 is prolonged, and further improve the experience of the user. The ring body 41 is sleeved outside the integral erasing key 24 and is matched with the mounting cover 44, so that the integral erasing key 24 is in a closed state, the integral erasing key 24 can be effectively protected, certain dustproof and waterproof effects are achieved, meanwhile, a user can be prevented from directly contacting the integral erasing key 24, the user can be prevented from accidentally touching the integral erasing key 24 to erase the contents on the liquid crystal handwriting board, and the effect of improving the experience of the user on the liquid crystal handwriting board is achieved. Wherein the elastic member 42 is a spring, when the elastic member 42 is in a natural state, i.e. not compressed or stretched, a certain distance exists between one end of the mounting cover 44 close to the integral erasing key 24 and the integral erasing key, and the slot 441 is arranged at one end of the mounting cover 44 far away from the integral erasing key 24, so that even if a user writes characters on the liquid crystal writing board after arranging the protection component 40 and carelessly presses the mounting cover 44, the arrangement of the distance and the elastic member 42 can prevent the mounting cover 44 from abutting against the integral erasing key 24 to a certain extent, and in addition, the arrangement of the slot 441 can reduce the contact chance between the fingers of the user and the outer surface wall of the mounting cover 44, further reduce the possibility that the user carelessly and mistakenly touches the integral erasing key 24, and prevent the characters written by the user from being completely erased, therefore, the experience of the user is improved, and in addition, when the user needs to press the integral erasing key 24 to erase all the characters on the liquid crystal handwriting board, the specific operation is as follows: the user's finger is inserted into the slot 441, abuts against the mounting cover 44, then the slider 43 is moved towards the direction of the integral erasing key 24, and then the elastic member 42 is compressed, so that the mounting cover 44 is moved towards the direction of the integral erasing key 24, and the mounting cover 44 abuts against the integral erasing key 24, thereby pressing the integral erasing key 24 and completely erasing the characters on the liquid crystal handwriting board.

Further, the first base layer 10 and the second base layer 16 are both made of PET or PC material.

In this embodiment, the first base layer 10 and the second base layer 16 may be made of PET or PC materials, preferably PET materials, and the PET materials are used as photosensitive materials, so that the manufactured first base layer 10 and the second base layer 16 have good light transmission and good stability, and can further improve the product quality of the liquid crystal handwriting board 100 and improve the visual experience of a user.

Further, the first conductive layer 12 and the second conductive layer 14 are made of one or more of indium tin oxide, nano silver, polythiophene, carbon nanotube or graphene material.

In this embodiment, the first conductive layer 12 and the second conductive layer 14 may be made of one or more of indium tin oxide, nano silver, polythiophene, carbon nanotube, or graphene, wherein preferably, the first conductive layer 12 and the second conductive layer 14 are made of indium tin oxide, which is an N-type oxide semiconductor-indium tin oxide, and an ITO thin film, which is an indium tin oxide semiconductor transparent conductive film, has good resistivity and light transmittance, so that a user can write on the liquid crystal handwriting board 100 more sensitively, and a pressure trace can be displayed more clearly, thereby improving a user experience.

Further, the cholesteric liquid crystal layer 13 includes a first layer 131, a second layer 132, a third layer 133, a fourth layer 134, and a fifth layer 135, the first layer 131, the second layer 132, the third layer 133, the fourth layer 134, and the fifth layer 135 are sequentially and fixedly connected from left to right, the first layer 131 can reflect orange-red light, the second layer 132 can reflect yellow light, the third layer 133 can reflect green light, the fourth layer 134 can reflect blue light, and the fifth layer 135 can reflect purple light.

In this embodiment, since the wavelength of light determines the color of light, the arrangement of the first layer 131, the second layer 132, the third layer 133, the fourth layer 134, and the fifth layer 135 enables the cholesteric liquid crystal layer 13 to reflect light having a specific wavelength, i.e., the first layer 131 is capable of reflecting light of an orange-red color, the second layer 132 is capable of reflecting light of a yellow color, the third layer 133 is capable of reflecting green light, the fourth layer 134 is capable of reflecting blue light, the fifth layer 135 is capable of reflecting violet light, therefore, the liquid crystal handwriting board 100 can realize color handwriting, can write monochromatic handwriting and multi-color-changing handwriting, and has more writing interest, stronger user visual experience and improved user experience compared with the previous handwriting board which can only write gray black handwriting.

Further, the liquid crystal writing pad 100 further includes a cover 30, and the cover 30 is rotatably connected to the casing 20 and covers the first base layer 10.

In this embodiment, when the liquid crystal writing pad 100 needs to be used, the cover 30 may be turned over, so that a user can write handwriting on the liquid crystal writing pad 100 conveniently, and when the liquid crystal writing pad 100 does not need to be used, the cover 30 and the housing 20 may be covered to prevent dust from being stained on the first base layer 10 and affecting user experience.

Further, the liquid crystal writing pad 100 further includes a buffer pad 31, where the buffer pad 31 is fixedly connected to the cover 30 and is located on a side of the cover 30 close to the first base layer 10.

In this embodiment, the cushion 31 is made of sponge or rubber material, and the cushion 31 can protect the first substrate 10 and prevent the first substrate 10 from being damaged due to a heavy pressure.

Further, the liquid crystal writing pad 100 further includes a first magnetic member 32 and a second magnetic member 33, the first magnetic member 32 is fixedly connected to the buffer pad 31 and located inside an outer edge of the buffer pad 31, and the second magnetic member 33 is fixedly connected to the housing 20 and located inside the groove 201.

In this embodiment, the first magnetic member 32 and the second magnetic member 33 are both magnets, when the cover 30 is covered on the housing 20, the cover 30 and the housing 20 can be more stably and firmly covered by the first magnetic member 32 and the second magnetic member 33, and the cover 30 is not easy to loosen, so that the comfort and the experience of a user are improved.

Further, the liquid crystal writing pad 100 further includes an anti-vibration sleeve 34, and the anti-vibration sleeve 34 is detachably connected to the casing 20 and is located on an outer side wall of the casing 20.

In this embodiment, antidetonation cover 34 adopts rubber materials to make, antidetonation cover 34 cover is established the lateral wall of casing 20 liquid crystal handwriting pad 100 bumps with hard thing or with drop to when ground, antidetonation cover 34 can be to playing buffering cushioning effect, prevents liquid crystal handwriting pad 100 is damaged, and then the extension liquid crystal handwriting pad 100's life, user's hand is holding simultaneously during casing 20, more comfortable softness improves user experience and feels.

Further, the anti-vibration sleeve 34 has an anti-slip protrusion 35 on an outer surface wall thereof.

In this embodiment, the anti-slip protrusion 35 is arranged to increase the friction between the hand of the user and the anti-shock sleeve 34, so that the user is not likely to slip when holding the housing 20, and the user experience is improved.

Further, the liquid crystal writing pad 100 further includes a writing stick 36, and the writing stick 36 is detachably connected to the casing 20 and is located inside the placing groove 202.

In the present embodiment, the writing rod 36 is provided to facilitate the user to select to write on the liquid crystal writing pad 100 with a hand or with the writing rod, so that the user experience is better, and the writing rod 36 can be used to place the writing rod 36.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. A liquid crystal writing pad is characterized in that,

the liquid crystal display device comprises a first base layer, a first protection layer, a first conducting layer, a cholesteric liquid crystal layer, a second conducting layer, a second protection layer, a second base layer, a shell, a power supply, a pulse circuit board, a whole erasing key and a protection component, wherein the first base layer, the first protection layer, the first conducting layer, the cholesteric liquid crystal layer, the second conducting layer, the second protection layer and the second base layer are fixedly connected from top to bottom in sequence and are positioned in the shell, the shell is provided with a groove and a placing groove, the placing groove is positioned on one side of the groove, the power supply and the pulse circuit board are both arranged in the shell, the power supply is electrically connected with the pulse circuit board, the pulse circuit board is electrically connected with the first conducting layer and the second conducting layer respectively, and the whole erasing key is arranged on the outer side wall of the shell, just the whole key of erasing with pulse circuit board electric connection, the protection component includes ring body, elastic component, slider and installation lid, the ring body with casing fixed connection to the cover is established the outside of whole key of erasing, the relative spout that sets up has on the inside wall of ring body, every all be provided with in the spout the elastic component, just the both ends of elastic component respectively with the ring body with slider fixed connection, the installation lid respectively with two slider fixed connection to be located every the slider is kept away from the one end of elastic component, just the ring body cover is established the outside of installation lid, the installation is covered and is had the cell body.

2. The liquid crystal writing pad of claim 1,

the first base layer and the second base layer are both made of PET or PC materials.

3. The liquid crystal writing pad of claim 1,

the first conducting layer and the second conducting layer are both composed of one or more of indium tin oxide, nano silver, polythiophene, carbon nano tubes or graphene materials.

4. The liquid crystal writing pad of claim 1,

the cholesteric liquid crystal layer comprises a first layer, a second layer, a third layer, a fourth layer and a fifth layer, the first layer, the second layer, the third layer, the fourth layer and the fifth layer are sequentially and fixedly connected from left to right, the first layer can reflect orange red light, the second layer can reflect yellow light, the third layer can reflect green light, the fourth layer can reflect blue light, and the fifth layer can reflect purple light.

5. The liquid crystal writing pad of claim 1,

the liquid crystal writing pad further comprises a cover body, wherein the cover body is rotatably connected with the shell and covers the outer portion of the first base layer.

6. The liquid crystal writing pad of claim 5,

the liquid crystal handwriting board further comprises a buffer pad, wherein the buffer pad is fixedly connected with the cover body and is positioned on one side of the cover body close to the first base layer.

7. The liquid crystal writing pad of claim 6,

the liquid crystal writing pad further comprises a first magnetic piece and a second magnetic piece, the first magnetic piece is fixedly connected with the buffer pad and located inside the outer edge of the buffer pad, and the second magnetic piece is fixedly connected with the shell and located inside the groove.

8. The liquid crystal writing pad of claim 1,

the liquid crystal handwriting board further comprises an anti-vibration sleeve, and the anti-vibration sleeve is detachably connected with the shell and is positioned on the outer side wall of the shell.

9. The liquid crystal writing pad of claim 8,

and the outer surface wall of the anti-seismic sleeve is provided with anti-skid projections.

10. The liquid crystal writing pad of claim 1,

the liquid crystal handwriting board further comprises a writing rod, and the writing rod is detachably connected with the shell and is positioned inside the placing groove.

Images