CN215576009U - Electromagnetic positioning liquid crystal writing device and bistable liquid crystal writing board, blackboard and drawing board - Google Patents
Electromagnetic positioning liquid crystal writing device and bistable liquid crystal writing board, blackboard and drawing board Download PDFInfo
- Publication number
- CN215576009U CN215576009U CN202121904945.8U CN202121904945U CN215576009U CN 215576009 U CN215576009 U CN 215576009U CN 202121904945 U CN202121904945 U CN 202121904945U CN 215576009 U CN215576009 U CN 215576009U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal writing
- layer
- electromagnetic
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides an electromagnetic positioning liquid crystal writing device, a bistable liquid crystal writing board, a blackboard and a drawing board, which comprise a conducting layer, a bistable liquid crystal layer and a substrate layer which are sequentially arranged, wherein a plurality of pixel units which are arranged in an array shape are integrated on the substrate layer, a pixel electrode and a switch element connected with the pixel electrode are arranged in each pixel unit, and an electromagnetic induction layer is integrated in the substrate layer or an electromagnetic induction layer is arranged outside the substrate layer; according to the utility model, the electromagnetic induction layer is arranged at the bottom of the substrate layer, so that accurate writing positioning on the liquid crystal writing device based on optical erasing is realized.
Description
Technical Field
The utility model relates to the technical field of liquid crystal writing boards, in particular to a liquid crystal writing device with an electromagnetic positioning function.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
Chinese patent CN112684618A discloses a technical scheme for implementing local erasing on a liquid crystal writing device by using the light sensitivity of a TFT, which does not need to provide a positioning circuit and a driving circuit, simplifies the circuit structure of the product, and improves the reliability of the product.
However, although the above scheme realizes better illumination local erasing, the positioning of the handwriting cannot be realized because infrared or ultrasonic positioning is not required.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides the liquid crystal writing device with the electromagnetic positioning function, and the accurate writing positioning based on the optical erasing liquid crystal writing device is realized through the arranged electromagnetic induction layer.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a liquid crystal writing device with an electromagnetic positioning function in a first aspect.
The utility model provides a liquid crystal writing device with electromagnetic positioning function, is including the conducting layer, bistable liquid crystal layer and the stratum basale that set gradually, integrated on the stratum basale have a plurality of pixel units that the array form was arranged, be equipped with in every pixel unit pixel electrode and with the switching element that pixel electrode connects, stratum basale internal integration has electromagnetic induction layer or stratum basale outside to be equipped with the electromagnetic induction layer.
Furthermore, the electromagnetic induction layer is an electromagnetic induction circuit communicated with the external control unit, and the electromagnetic induction circuit comprises two layers of wires which are arranged according to a certain rule along the horizontal direction and the vertical direction.
Furthermore, the switching element is a thin film field effect transistor (TFT), the grid electrode of the TFT is connected with the first lead, the source electrode of the TFT is connected with the second lead, and the drain electrode of the TFT is connected with the corresponding pixel electrode.
Further, the gates of all the TFTs are connected to the same first wire.
Further, the gate electrodes of the respective TFTs are connected to respective corresponding first conductive lines.
Furthermore, the source electrodes of all the TFTs are connected with the same second wire;
further, the source electrode of each TFT is connected to a respective corresponding second wire.
Furthermore, the switch element is connected with an energy storage element, and an outgoing line of the energy storage element is connected with an electrode outgoing line of the conductive layer.
Further, the electrode line of the conductive layer is connected to the base layer, and the electrode is drawn out only from the base layer.
The utility model provides a bistable liquid crystal writing board in a second aspect, which comprises the liquid crystal writing device with the electromagnetic positioning function in the first aspect.
The utility model provides a bistable liquid crystal blackboard, which comprises the liquid crystal writing device with the electromagnetic positioning function.
The utility model provides a bistable liquid crystal drawing board, which comprises the liquid crystal writing device with the electromagnetic positioning function.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the liquid crystal writing device with the electromagnetic positioning function, the electromagnetic induction layer is arranged at the bottom of the substrate layer, so that accurate writing positioning based on the optical erasing liquid crystal writing device is realized, and the liquid crystal writing device can be used for handwriting transmission and handwriting storage.
2. The liquid crystal writing device with the electromagnetic positioning function realizes the combination of liquid crystal writing, local light erasing and writing positioning, and improves the application range of products.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
Fig. 1 is a schematic structural diagram of a liquid crystal writing device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a substrate layer according to an embodiment of the present invention.
1-a conductive layer; 2-a liquid crystal layer; 3-a base layer; 4-pixel cells; 5-an erase electrode; 6-electromagnetic induction layer.
Detailed Description
The utility model is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1:
as shown in fig. 1 and 2, embodiment 1 of the present invention provides a liquid crystal writing apparatus having an electromagnetic positioning function, including: the liquid crystal display comprises a conductive layer 1, a bistable liquid crystal layer 2 and a substrate layer 3 which are arranged in sequence;
a plurality of pixel units 4 arranged in an array are integrated on the substrate layer 3, and a pixel electrode 5 and a switch element connected with the pixel electrode 5 are arranged in each pixel unit 4;
the electromagnetic induction layer 6 is integrated in the substrate layer 3 or arranged outside the substrate layer, and preferably, in this embodiment, the electromagnetic induction layer 6 is arranged at the bottom of the substrate layer 3.
The electrode wires of the conducting layer are connected to the substrate layer 3, only the electrodes are led out from the substrate layer 3, and the electromagnetic induction layer 6 is an electromagnetic induction circuit connected with an external control unit.
Preferably, the electromagnetic induction circuit is composed of two layers of conducting wires which are arranged according to a certain rule in the horizontal direction and the vertical direction, induced electrical signals are generated when the electromagnetic pen is close to the conducting wires, XY coordinates are calculated respectively according to wiring rules after amplification, a plurality of coordinate points form motion trail signals of the electromagnetic pen, and the motion trail signals of the electromagnetic pen are transmitted to the external terminal by the electromagnetic induction circuit.
It is to be understood that in some other embodiments, the electromagnetic induction circuit may also be an electromagnetic induction circuit in other forms, as long as the electromagnetic induction positioning of the electromagnetic pen can be achieved, and a person skilled in the art may select the electromagnetic induction circuit according to specific working conditions, which is not described herein again.
Furthermore, the switching element is a thin film field effect transistor (TFT), the grid electrode of the TFT is connected with the first lead, the source electrode of the TFT is connected with the second lead, and the drain electrode of the TFT is connected with the corresponding pixel electrode.
In this embodiment, the gates of all TFTs are connected to the same first wire, and the sources of all TFTs are connected to the same second wire, where the first wire and the second wire are both connected to the power supply, the first wire is used to supply the control voltage to each TFT, and the second wire is used to supply the input voltage to each TFT.
It will be appreciated that in other embodiments, the gate of each TFT is connected to a respective corresponding first conductor and the source of each TFT is connected to a respective corresponding second conductor.
In this embodiment, the TFT is connected to the energy storage element, and the lead line of the energy storage element is connected to the electrode lead line of the conductive layer, so as to prevent voltage jump.
Example 2:
embodiment 2 of the present invention provides a bistable liquid crystal writing board, including the liquid crystal writing device having an electromagnetic positioning function described in embodiment 1 of the present invention.
Example 3:
Example 4:
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an electromagnetic positioning liquid crystal writing device, is including the conducting layer, bistable liquid crystal layer and the stratum basale that set gradually, integrated on the stratum basale have a plurality of pixel cell that array form was arranged, be equipped with in every pixel cell pixel electrode and with the switching element that pixel electrode connects, its characterized in that:
the electromagnetic induction layer is integrated in the base layer or arranged outside the base layer.
2. The electromagnetic positioning liquid crystal writing instrument of claim 1, wherein:
the electromagnetic induction layer is an electromagnetic induction circuit communicated with the external control unit, and the electromagnetic induction circuit comprises two layers of wires which are arranged according to a certain rule along the horizontal direction and the vertical direction.
3. The electromagnetic positioning liquid crystal writing instrument of claim 1, wherein:
the switching element is a thin film field effect transistor (TFT), the grid electrode of the TFT is connected with the first lead, the source electrode of the TFT is connected with the second lead, and the drain electrode of the TFT is connected with the corresponding pixel electrode.
4. An electromagnetically aligned liquid crystal writing apparatus as claimed in claim 3, wherein:
the grid electrodes of all the TFTs are connected with the same first lead;
alternatively, the first and second electrodes may be,
the gate of each TFT is connected to a respective corresponding first wire.
5. An electromagnetically aligned liquid crystal writing apparatus as claimed in claim 3, wherein:
the source electrodes of all the TFTs are connected with the same second wire;
alternatively, the first and second electrodes may be,
the source electrodes of the respective TFTs are connected to respective corresponding second conductive lines.
6. The electromagnetic positioning liquid crystal writing instrument of claim 1, wherein:
the switch element is connected with the energy storage element, and an outgoing line of the energy storage element is connected with an electrode outgoing line of the conductive layer.
7. The electromagnetic positioning liquid crystal writing instrument of claim 1, wherein: the electrode wire of the conductive layer is connected to the base layer, and the electrode is drawn out only from the base layer.
8. A bistable liquid crystal writing board comprising the liquid crystal writing device having an electromagnetic positioning function according to any one of claims 1 to 7.
9. A bistable liquid crystal blackboard comprising a liquid crystal writing instrument with electromagnetic positioning function as claimed in any one of claims 1 to 7.
10. A bistable liquid crystal drawing board comprising a liquid crystal writing instrument with electromagnetic positioning function as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904945.8U CN215576009U (en) | 2021-08-13 | 2021-08-13 | Electromagnetic positioning liquid crystal writing device and bistable liquid crystal writing board, blackboard and drawing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904945.8U CN215576009U (en) | 2021-08-13 | 2021-08-13 | Electromagnetic positioning liquid crystal writing device and bistable liquid crystal writing board, blackboard and drawing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215576009U true CN215576009U (en) | 2022-01-18 |
Family
ID=79835692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121904945.8U Active CN215576009U (en) | 2021-08-13 | 2021-08-13 | Electromagnetic positioning liquid crystal writing device and bistable liquid crystal writing board, blackboard and drawing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215576009U (en) |
-
2021
- 2021-08-13 CN CN202121904945.8U patent/CN215576009U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112684618B (en) | Liquid crystal writing device and method for realizing local erasing by utilizing illumination | |
| CN112748600B (en) | Writing device and method for locally erasing liquid crystal | |
| CN104217677B (en) | touch display circuit and display device | |
| CN106406622B (en) | OLED touch control display apparatus | |
| CN100470628C (en) | Image display apparatus | |
| CN105159490B (en) | Touch-control display panel and its driving method and touch control display apparatus | |
| CN107564474B (en) | A kind of touch panel and touch screen | |
| CN205645814U (en) | Organic luminous display panel | |
| CN104699316B (en) | Array base palte, display panel and display device | |
| CN104409473B (en) | Piezoelectricity touch control organic light-emitting display panel and manufacturing method, organic light emitting display | |
| CN105185306A (en) | Pixel circuit, driving method for the pixel circuit, display substrate and display apparatus | |
| CN209729474U (en) | A kind of display panel and display device | |
| CN109697958A (en) | A kind of organic light emitting display panel and organic light-emitting display device | |
| CN102841716A (en) | Capacitance-type embedded touch screen and display device | |
| CN108803932A (en) | Pixel circuit, array substrate, display panel and its driving method | |
| CN110189708A (en) | Pixel-driving circuit and display device | |
| CN207165217U (en) | Touch-control display panel, image element circuit, electronic installation | |
| CN106940983A (en) | Image element circuit and its driving method, display device | |
| CN109192138A (en) | A kind of display panel and its control method, display device | |
| US10761652B2 (en) | Touch panel, touch device and method of manufacturing touch panel | |
| CN109064972A (en) | Dot structure, driving method, pixel circuit and display panel | |
| CN103198788A (en) | Pixel circuit, organic electroluminescence display panel and display device | |
| CN110599936B (en) | Display panel, display detection method thereof and display device | |
| CN202711227U (en) | Capacitive in-cell touch panel and display device | |
| CN113434054A (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |