KR101052769B1 - Reusable electronic note paper and data processing system including the same - Google Patents

Abstract

Disclosed are electronic notes that can be reused. The electronic note paper includes a PCB including a plurality of unit cells; And conductive thin films, each of which is detachably compressed to each of the plurality of unit cells, wherein each of the plurality of unit cells includes a first connection terminal and a plurality of first connection terminals connected to a first wire implemented in each of the plurality of unit cells. And a second connection terminal connected to a second lead implemented in each of the unit cells of, wherein a portion of the first connection terminal and a portion of the second connection terminal are exposed on the PCB, and each of the conductive thin films Electrically connects a part of the first connection terminal and a part of the second connection terminal.

Description

Reusable Electronic Notepad and data processing system using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic memo papers, and more particularly, to an electronic memo paper that can be reused by using a conductive thin film that is easily removable and a data processing system including the same.

Recently, as a technology for recognizing a user's handwriting input and processing it as a digital signal has emerged, interface technologies for recognizing the handwriting input have been developed.

Methods of recognizing a user's handwriting input include an electromagnetic sensor board method, a camera sensor method, an electromagnetic signal recognition method, and a conductive panel method.

The methods described above may be performed by a user using a dedicated pen or a dedicated panel, for example, inputting letters, symbols, or pictures and recognizing the inputted user writing, or by placing the user on a paper on a conventional input device and writing on the paper. It was a method of inputting and recognizing the input user's handwriting. Such user writing requires an expensive dedicated pen or dedicated panel and does not leave offline data.

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above problems and to provide a reusable electronic memo paper and a data processing system including the same by using a conductive thin film that is free of detachment.

Electronic note paper according to an embodiment of the present invention PCB; And conductive thin films, each of which is detachably compressed to each of the plurality of unit cells, wherein each of the plurality of unit cells includes a first connection terminal and a plurality of first connection terminals connected to a first wire implemented in each of the plurality of unit cells. And a second connection terminal connected to a second lead implemented in each of the unit cells of, wherein a portion of the first connection terminal and a portion of the second connection terminal are exposed on the PCB, and each of the conductive thin films Electrically connects a part of the first connection terminal and a part of the second connection terminal.

Each of the conductive thin films is implemented in one sheet at a predetermined distance, and each of the conductive thin films embodied in the one sheet is disposed at a position corresponding one to one to each of the plurality of unit cells.

A signal supply circuit configured to supply an operation signal to the first lead formed in the PCB and implemented in each of the plurality of unit cells; And a signal sensing circuit formed in the PCB and configured to sense a signal output from the second lead implemented in each of the plurality of unit cells.

Data processing system according to an embodiment of the present invention is an electronic note paper; And a processor for controlling the operation of the electronic memo pad.

The electronic note paper includes a PCB including a plurality of unit cells; And conductive thin films, each of which is detachably pressed to each of the plurality of unit cells. Each of the plurality of unit cells includes a first connection terminal connected to a first lead implemented in each of the plurality of unit cells and a second connection terminal connected to a second lead implemented in each of the plurality of unit cells. A portion of the first connection terminal and a portion of the second connection terminal are exposed on the upper portion of the PCB, and each of the conductive thin films electrically connects a portion of the first connection terminal and a portion of the second connection terminal. .

Each of the conductive thin films is implemented in one sheet at a predetermined distance, and each of the conductive thin films implemented in the one sheet is disposed at a position corresponding one to one to each of the plurality of unit cells.

A signal supply circuit configured to supply an operation signal to the first lead formed in the PCB and implemented in each of the plurality of unit cells; And a signal sensing circuit formed in the PCB and configured to sense a signal output from the second lead implemented in each of the plurality of unit cells and transmit the detected signal to the processor.

The electronic memo paper further includes a planarization layer for planarizing a portion of the first connection terminal exposed to the PCB and a portion of the second connection terminal exposed to the PCB. The signal sensing circuit outputs binary signals having levels with each other depending on whether each of the plurality of conductor thin films is torn.

The electronic note paper and the data processing system including the same according to the present invention can be digitized by performing a writing input without a user using a dedicated writing input device, and can be reused by using a removable conductor thin film.

The detailed description of each drawing is provided in order to provide a thorough understanding of the drawings cited in the detailed description of the invention.
1 is a schematic diagram of an electronic note paper according to an exemplary embodiment of the present invention.
FIG. 2 illustrates an embodiment of a sheet that may be attached to the input pad illustrated in FIG. 1.
FIG. 3 illustrates an embodiment of a circuit diagram of a unit input cell shown in FIG. 1.
4 illustrates another embodiment of a circuit diagram of the unit input cell illustrated in FIG. 1.
FIG. 5 illustrates another embodiment of a circuit diagram of the unit input cell illustrated in FIG. 1.
6 is a cross-sectional view taken along line II ′ of the unit input cell shown in FIG. 2.
FIG. 7 shows a block diagram of a data processing system including the electronic memo paper shown in FIG. 1.

Specific structural to functional descriptions of embodiments according to the inventive concept disclosed in the specification or the application are only illustrated for the purpose of describing embodiments according to the inventive concept, and according to the inventive concept. The examples may be embodied in various forms and should not be construed as limited to the embodiments set forth herein or in the application.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms first and / or second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another, for example, without departing from the scope of rights in accordance with the inventive concept, and the first component may be called a second component and similarly The second component may also be referred to as the first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between. Other expressions describing the relationship between components, such as "between" and "immediately between," or "neighboring to," and "directly neighboring to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof that is described, and that one or more other features or numbers are present. It should be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of an electronic note paper according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a user thin film writing input device such as an electronic memo 10 may be detachably compressed to an input pad 20 including a plurality of unit cells 21 and a plurality of unit cells 21, respectively. Thin films 23.

FIG. 2 illustrates an embodiment of a sheet that may be attached to the input pad illustrated in FIG. 1. As illustrated in FIG. 2, each of the conductive thin films 23 compressed to each of the plurality of unit cells 21 is included in one sheet 70 at a predetermined distance. As illustrated in FIG. 2, each of the plurality of conductive thin films of the sheet 70 may correspond to each of the plurality of unit cells in a 1: 1 ratio.

The input pad 20 includes an array of a plurality of unit cells 21, 21 including 21A of FIG. 2, 21B of FIG. 3, or 21C of FIG. 4. Each of the plurality of unit input cells 21 performs a function of a sensor or a detector capable of detecting a user's handwriting input input by a user, for example, a sign, a figure, a character, or a picture.

The input pad 20 may include a plurality of voltage supply lines WL1 ˜WLn, a plurality of lead out lines BL1 ˜BLm, a plurality of voltage supply lines WL1 ˜WLn, and a plurality of lead out lines ( It includes a plurality of unit input cells 21 connected between BL1 to BLm.

The plurality of voltage supply lines WL1 ˜WLn and the plurality of readout lines BL1 ˜BLm may be implemented in the PCB 100 as shown in FIG. 5. In some embodiments, the plurality of voltage supply lines WL1 ˜WLn and the plurality of readout lines BL1 ˜BLm may be formed in a semiconductor substrate according to a semiconductor process.

The electronic memo sheet 10 may further include a row decoder 30 and a readout circuit 60. The row decoder 30, which functions as a signal or voltage supply circuit, decodes the row addresses X-ADD output from the controller 50, and among the plurality of voltage supply lines WL1 to WLn according to the decoding result. You can choose either.

For example, the row decoder 30 may supply a first voltage (eg, 3.3V) to one selected voltage supply line and a second voltage (eg, ground voltage) to a plurality of unselected voltage supply lines. have.

For example, when the row decoder 30 supplies the first voltage to the i-th voltage supply line among the plurality of voltage supply lines WL1 to WLn, the row decoder 30 supplies a plurality of voltages other than the second voltage supply line. The second voltage may be supplied to the lines. Accordingly, each of the plurality of voltage supply lines WL1 ˜WLn may be sequentially selected by the row decoder 30.

According to an embodiment, the electronic memo sheet 10 may further include a voltage generator 40 for supplying a voltage to each of the plurality of voltage supply lines WL1 to WLn under the control of the controller 50. The row decoder 30 may supply the first voltage or the second voltage generated by the voltage generator 40 to each of the plurality of voltage supply lines WL1 to WLn according to the row addresses X-ADD.

The readout circuit 60, which performs a function as a signal sensing circuit, decodes the read addresses Y-ADD output from the controller 50 and from the plurality of readout lines BL1 to BLm according to the decoding result. The output signals can be processed, for example amplified or analog-digital transformed. For example, the readout circuit 60 receives signals output from the plurality of readout lines BL1 to BLm connected to the plurality of unit input cells connected to the selected voltage supply line according to the read addresses Y-ADD. It can be processed sequentially or simultaneously.

The readout circuit 60 may include a respective amplifier, for example, a sense amplifier, for amplifying each signal output from each readout line BL1 to BLm. In addition, the readout circuit 60 may further include a respective analog-digital circuit for converting each amplified signal output from the respective amplifier into a respective digital signal.

According to an embodiment, the readout circuit 60 may include each analog-digital circuit for converting each signal output from each readout line BL1 to BLm into a respective digital signal.

FIG. 3 illustrates an embodiment of a circuit diagram of a unit input cell shown in FIG. 1.

1 and 3, the unit input cell 21A includes a first connection terminal 22-1 and a lead-out line connected to a voltage supply line (WLi, 1 ≦ i ≦ n, where i and n are natural numbers). (BLj, 1 ≦ j ≦ m, where j and m are natural numbers), and the second connection terminal 22-2, and the first connection terminal 22-1 and the second connection terminal 22-2. A conductive thin film 23 that can be easily attached and detached for electrical connection is included.

When the conductor thin film 23 is crimped, the strength of the conductor thin film 23 is high, and thus the possibility of reliably recognizing the user's handwriting input is low. it's difficult.

The conductive thin film 23 according to the embodiment of the present invention electrically connects the first connection terminal 22-1 and the second connection terminal 22-2 to each other by using a crimping method, and is destroyed or torn after a user's handwriting input. Debris removal of the conductor thin film 23 is easy.

When the first connection terminal 22-1 and the second connection terminal 22-2 are electrically connected to each other through the conductor thin film 23, the first signal supplied through the voltage supply line WLi, for example, The first voltage or the second voltage may be output to the readout line BLj. In this case, it may be assumed that the unit input cell 21A represents data 1 or stored.

However, when the conductor thin film 23 is broken or torn and the first connection terminal 22-1 and the second connection terminal 22-2 are electrically separated from each other, the first supplied through the voltage supply line WLi. The signal cannot be output to the readout line BLj. In this case, it may be assumed that the unit input cell 21A represents or stores data zero.

That is, the lead-out circuit 60 determines the user handwriting input indicated by the unit input cell 21A, that is, the data input by the user, according to whether the conductor thin film 23 is broken or torn, and processes, for example, amplifies the determined data. Or analog-to-digital conversion.

4 illustrates another embodiment of a circuit diagram of the unit input cell illustrated in FIG. 1.

1 and 4, the unit input cell 21B further includes a blocking circuit 25 formed between the voltage supply line WLi and the first connection terminal 22-1.

The blocking circuit 25 receives a signal input through the lead-out line BLj, for example, a signal or noise inputted through the lead-out line BLj and the tear-resistant conductor thin film 23 after being output from another voltage supply line. It serves to block the influence on the voltage supply line WLi. For example, the blocking circuit 25 may be a diode or a diode connected transistor.

FIG. 5 illustrates another embodiment of a circuit diagram of the unit input cell illustrated in FIG. 1.

1 and 5, the unit input cell 21C further includes a blocking circuit 27 formed between the lead-out line BLj and the second connection terminal 22-2.

The blocking circuit 27 prevents the signal of the lead-out line BLj, for example, the signal input through another voltage supply line or the influence of the voltage supply line WLi through the conductor thin film 23 from which the noise is not torn. Perform the function to For example, the blocking circuit 27 may be a diode or a diode connected transistor.

6 is a cross-sectional view taken along line II ′ of the unit input cell shown in FIG. 2.

2 and 6, a voltage supply line (or first conductor 110) and a lead-out line (or second conductor 120) are formed in the PCB 100 formed of a plurality of layers. The voltage supply line 110 and the leadout line 120 may be formed in the same layer or different layers in the PCB 100. In this case, the voltage supply line 110 and the readout line 120 are insulated from each other.

The first connection terminal 22-1 is electrically connected to the voltage supply line 110, and the second connection terminal 22-2 is electrically connected to the lead-out line 120. The exposed portion 22-3 of the first connecting terminal 22-1 and the exposed portion 22-4 of the second connecting terminal 22-2 exposed on the upper portion of the PCB 100 are formed of the conductive thin film 23. It is electrically connected to each other through. According to an embodiment, the upper portion of the PCB 100 and the periphery of the exposed portion 22-3 of the first connection terminal 22-1 and the periphery of the exposed portion 22-4 of the second connection terminal 22-2 are provided. The silver reusable conductor thin film 23 may be planarized by an insulating material or a coating material except where the electrical connection is made.

Therefore, each of the plurality of conductive thin films 23 and the plurality of unit cells implemented in the sheet may be easily connected one-to-one, and the debris may not easily remain due to tearing, and the debris may be easily removed.

At this time, the conductor thin film 23 electrically connects the exposed portions 22-3 and 22-4 to the upper portion of the PCB 100 by a crimping method. Therefore, since each exposed portion 22-3 and 22-4 are connected in a crimping manner, the conductive thin film 23 according to the embodiment of the present invention is easily detachable and can easily remove debris even if broken or torn after use. have. Accordingly, even after the debris is removed, a new conductor thin film 23 can be attached and reused.

According to the exemplary embodiment, each of the conductive thin films 23 may be removed from the entire sheet implemented at a predetermined distance, and then the new sheet 70 may be compressed and reused.

FIG. 7 shows a block diagram of a data system including the input device shown in FIG. 1. 1 to 7, the data system 200 includes a writing input device 10 and a microprocessor 210 connected to a bus 201.

The microprocessor 210 may control the operation of the electronic note paper 10. For example, the microprocessor 210 enters the electronic memo pad 10 into a standby state waiting for a user's handwriting input, or detects and detects data corresponding to a text or a picture input by the user to the electronic memo sheet 10. The result may be stored in the memory 220.

System 200 may further include an interface 230. When the interface 230 is implemented as a display device, the display device may display data output from the electronic memo pad 10 or the memory 220 under the control of the microprocessor 210.

According to an embodiment, when the interface 230 is implemented as a wireless transmission module, the wireless transmission module may transmit data output from the writing input device 10 or the memory 220 to the wireless communication protocol under the control of the microprocessor 210. After conversion to the corresponding wireless data, the converted data can be transmitted to the host or reader. System 200 may be implemented as a computer system or a wireless communication system.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10: Electronic Note 20: PCB
21: unit cell 23: conductor thin film
30: low decoder 40: voltage generator
50: controller 60: readout circuit
70: sheet

Claims (9)

A PCB including a plurality of unit cells; And
Each of the plurality of conductive thin films that are detachably compressed to each of the plurality of unit cells,
Each of the plurality of unit cells includes a first connection terminal connected to a first lead implemented in each of the plurality of unit cells and a second connection terminal connected to a second lead implemented in each of the plurality of unit cells. A portion of the first connection terminal and a portion of the second connection terminal are exposed on the upper portion of the PCB,
Each of the conductive thin films electrically connecting a portion of the first connection terminal to a portion of the second connection terminal. Claim 2 has been abandoned due to the setting registration fee. The method of claim 1,
Each of the conductive thin films is embodied in one sheet at a predetermined distance. Claim 3 was abandoned when the setup registration fee was paid. The electronic note paper of claim 2, wherein each of the conductive thin films implemented in the one sheet is disposed at a one-to-one correspondence with each of the plurality of unit cells. The method of claim 1, wherein the electronic memo paper,
A signal supply circuit configured to supply an operation signal to the first lead formed in the PCB and implemented in each of the plurality of unit cells; And
And a signal sensing circuit formed in the PCB and configured to sense a signal output from the second lead implemented in each of the plurality of unit cells. Electronic note paper; And
It includes a processor for controlling the operation of the electronic memo paper,
The electronic note paper,
A PCB including a plurality of unit cells; And
Each of the plurality of conductive thin films that are detachably compressed to each of the plurality of unit cells,
Each of the plurality of unit cells includes a first connection terminal connected to a first lead implemented in each of the plurality of unit cells and a second connection terminal connected to a second lead implemented in each of the plurality of unit cells. A portion of the first connection terminal and a portion of the second connection terminal are exposed on the upper portion of the PCB,
Each of the conductive thin films electrically connecting a part of the first connection terminal and a part of the second connection terminal. Claim 6 was abandoned when the registration fee was paid. The method of claim 5,
Each of the conductive thin films is implemented in one sheet at a predetermined distance,
Each of the conductive thin films implemented in the one sheet is disposed at a position corresponding one to one to each of the plurality of unit cells. The method of claim 5, wherein the electronic memo paper,
A signal supply circuit configured to supply an operation signal to the first lead formed in the PCB and implemented in each of the plurality of unit cells; And
And a signal sensing circuit formed in the PCB and configured to sense a signal output from the second lead implemented in each of the plurality of unit cells and to transmit the sensed signal to the processor. The method of claim 5, wherein the electronic memo paper,
And a planarization layer for planarizing a portion of the first connection terminal exposed to the PCB and a portion of the second connection terminal exposed to the PCB. The data processing system of claim 7, wherein the signal sensing circuit outputs binary signals having different levels according to whether each of the plurality of conductive thin films is torn.

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